109 files changed, 159 insertions, 159 deletions

diff --git a/drivers/acorn/block/fd1772.c b/drivers/acorn/block/fd1772.c
index 048542341204..674bf81c6e66 100644
--- a/drivers/acorn/block/fd1772.c
+++ b/drivers/acorn/block/fd1772.c
@@ -1549,12 +1549,12 @@ int fd1772_init(void)
 #ifdef TRACKBUFFER
         BufferDrive = BufferSide = BufferTrack = -1;
         /* Atari uses 512 - I want to eventually cope with 1K sectors */
-        DMABuffer = (char *)kmalloc((FD1772_MAX_SECTORS+1)*512,GFP_KERNEL);
+        DMABuffer = kmalloc((FD1772_MAX_SECTORS+1)*512,GFP_KERNEL);
         TrackBuffer = DMABuffer + 512;
 #else
         /* Allocate memory for the DMAbuffer - on the Atari this takes it
            out of some special memory... */
-        DMABuffer = (char *) kmalloc(2048);     /* Copes with pretty large sectors */
+        DMABuffer = kmalloc(2048);      /* Copes with pretty large sectors */
 #endif
         err = -ENOMEM;
         if (!DMAbuffer)
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index bc1b13c8f5d7..5aab7bd473ac 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1832,7 +1832,7 @@ static int __devinit eni_start(struct atm_dev *dev)
         /* initialize memory management */
         buffer_mem = eni_dev->mem - (buf - eni_dev->ram);
         eni_dev->free_list_size = buffer_mem/MID_MIN_BUF_SIZE/2;
-        eni_dev->free_list = (struct eni_free *) kmalloc(
+        eni_dev->free_list = kmalloc(
             sizeof(struct eni_free)*(eni_dev->free_list_size+1),GFP_KERNEL);
         if (!eni_dev->free_list) {
                 printk(KERN_ERR DEV_LABEL "(itf %d): couldn't get free page\n",
@@ -2232,7 +2232,7 @@ static int __devinit eni_init_one(struct pci_dev *pci_dev,
                 goto out0;
         }
 
-        eni_dev = (struct eni_dev *) kmalloc(sizeof(struct eni_dev),GFP_KERNEL);
+        eni_dev = kmalloc(sizeof(struct eni_dev),GFP_KERNEL);
         if (!eni_dev) goto out0;
         if (!cpu_zeroes) {
                 cpu_zeroes = pci_alloc_consistent(pci_dev,ENI_ZEROES_SIZE,
diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index 7d9b4e52f0bf..db33f6f4dd2a 100644
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -2351,7 +2351,7 @@ he_open(struct atm_vcc *vcc)
 
         cid = he_mkcid(he_dev, vpi, vci);
 
-        he_vcc = (struct he_vcc *) kmalloc(sizeof(struct he_vcc), GFP_ATOMIC);
+        he_vcc = kmalloc(sizeof(struct he_vcc), GFP_ATOMIC);
         if (he_vcc == NULL) {
                 hprintk("unable to allocate he_vcc during open\n");
                 return -ENOMEM;
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
index 267825501dfe..09f477d4237a 100644
--- a/drivers/atm/lanai.c
+++ b/drivers/atm/lanai.c
@@ -2602,7 +2602,7 @@ static int __devinit lanai_init_one(struct pci_dev *pci,
         struct atm_dev *atmdev;
         int result;
 
-        lanai = (struct lanai_dev *) kmalloc(sizeof(*lanai), GFP_KERNEL);
+        lanai = kmalloc(sizeof(*lanai), GFP_KERNEL);
         if (lanai == NULL) {
                 printk(KERN_ERR DEV_LABEL
                        ": couldn't allocate dev_data structure!\n");
diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
index bd0904594805..aab9b3733d52 100644
--- a/drivers/atm/nicstar.c
+++ b/drivers/atm/nicstar.c
@@ -997,7 +997,7 @@ static scq_info *get_scq(int size, u32 scd)
    if (size != VBR_SCQSIZE && size != CBR_SCQSIZE)
       return NULL;
 
-   scq = (scq_info *) kmalloc(sizeof(scq_info), GFP_KERNEL);
+   scq = kmalloc(sizeof(scq_info), GFP_KERNEL);
    if (scq == NULL)
       return NULL;
    scq->org = kmalloc(2 * size, GFP_KERNEL);
@@ -1006,7 +1006,7 @@ static scq_info *get_scq(int size, u32 scd)
       kfree(scq);
       return NULL;
    }
-   scq->skb = (struct sk_buff **) kmalloc(sizeof(struct sk_buff *) *
+   scq->skb = kmalloc(sizeof(struct sk_buff *) *
                                           (size / NS_SCQE_SIZE), GFP_KERNEL);
    if (scq->skb == NULL)
    {
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index 7df0f373188e..756d4f760da3 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -996,7 +996,7 @@ static int start_tx(struct atm_dev *dev)
 
         DPRINTK("start_tx\n");
         zatm_dev = ZATM_DEV(dev);
-        zatm_dev->tx_map = (struct atm_vcc **) kmalloc(sizeof(struct atm_vcc *)*
+        zatm_dev->tx_map = kmalloc(sizeof(struct atm_vcc *)*
             zatm_dev->chans,GFP_KERNEL);
         if (!zatm_dev->tx_map) return -ENOMEM;
         zatm_dev->tx_bw = ATM_OC3_PCR;
@@ -1591,7 +1591,7 @@ static int __devinit zatm_init_one(struct pci_dev *pci_dev,
         struct zatm_dev *zatm_dev;
         int ret = -ENOMEM;
 
-        zatm_dev = (struct zatm_dev *) kmalloc(sizeof(*zatm_dev), GFP_KERNEL);
+        zatm_dev = kmalloc(sizeof(*zatm_dev), GFP_KERNEL);
         if (!zatm_dev) {
                 printk(KERN_EMERG "%s: memory shortage\n", DEV_LABEL);
                 goto out;
diff --git a/drivers/base/dmapool.c b/drivers/base/dmapool.c
index dbe0735f8c9e..f95d50277274 100644
--- a/drivers/base/dmapool.c
+++ b/drivers/base/dmapool.c
@@ -173,7 +173,7 @@ pool_alloc_page (struct dma_pool *pool, gfp_t mem_flags)
         mapsize = (mapsize + BITS_PER_LONG - 1) / BITS_PER_LONG;
         mapsize *= sizeof (long);
 
-        page = (struct dma_page *) kmalloc (mapsize + sizeof *page, mem_flags);
+        page = kmalloc(mapsize + sizeof *page, mem_flags);
         if (!page)
                 return NULL;
         page->vaddr = dma_alloc_coherent (pool->dev,
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 730f9693150e..acb2fa9cf6b1 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1039,7 +1039,7 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
                                 status = -ENOMEM;
                                 goto cleanup1;
                         }
-                        buff_size = (int *)kmalloc(MAXSGENTRIES * sizeof(int),
+                        buff_size = kmalloc(MAXSGENTRIES * sizeof(int),
                                                    GFP_KERNEL);
                         if (!buff_size) {
                                 status = -ENOMEM;
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index d5f519ebbc08..b94cd1c32131 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -1625,7 +1625,7 @@ static void start_fwbk(int ctlr)
                 " processing\n");
         /* Command does not return anything, but idasend command needs a 
                 buffer */
-        id_ctlr_buf = (id_ctlr_t *)kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
+        id_ctlr_buf = kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
         if(id_ctlr_buf==NULL)
         {
                 printk(KERN_WARNING "cpqarray: Out of memory. "
@@ -1660,14 +1660,14 @@ static void getgeometry(int ctlr)
 
         info_p->log_drv_map = 0;        
         
-        id_ldrive = (id_log_drv_t *)kmalloc(sizeof(id_log_drv_t), GFP_KERNEL);
+        id_ldrive = kmalloc(sizeof(id_log_drv_t), GFP_KERNEL);
         if(id_ldrive == NULL)
         {
                 printk( KERN_ERR "cpqarray:  out of memory.\n");
                 return;
         }
 
-        id_ctlr_buf = (id_ctlr_t *)kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
+        id_ctlr_buf = kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
         if(id_ctlr_buf == NULL)
         {
                 kfree(id_ldrive);
@@ -1675,7 +1675,7 @@ static void getgeometry(int ctlr)
                 return;
         }
 
-        id_lstatus_buf = (sense_log_drv_stat_t *)kmalloc(sizeof(sense_log_drv_stat_t), GFP_KERNEL);
+        id_lstatus_buf = kmalloc(sizeof(sense_log_drv_stat_t), GFP_KERNEL);
         if(id_lstatus_buf == NULL)
         {
                 kfree(id_ctlr_buf);
@@ -1684,7 +1684,7 @@ static void getgeometry(int ctlr)
                 return;
         }
 
-        sense_config_buf = (config_t *)kmalloc(sizeof(config_t), GFP_KERNEL);
+        sense_config_buf = kmalloc(sizeof(config_t), GFP_KERNEL);
         if(sense_config_buf == NULL)
         {
                 kfree(id_lstatus_buf);
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 2df5cf4ec743..e4a2f8f3a1d7 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -1810,7 +1810,7 @@ static int dvd_read_disckey(struct cdrom_device_info *cdi, dvd_struct *s)
 
         size = sizeof(s->disckey.value) + 4;
 
-        if ((buf = (u_char *) kmalloc(size, GFP_KERNEL)) == NULL)
+        if ((buf = kmalloc(size, GFP_KERNEL)) == NULL)
                 return -ENOMEM;
 
         init_cdrom_command(&cgc, buf, size, CGC_DATA_READ);
@@ -1861,7 +1861,7 @@ static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s)
 
         size = sizeof(s->manufact.value) + 4;
 
-        if ((buf = (u_char *) kmalloc(size, GFP_KERNEL)) == NULL)
+        if ((buf = kmalloc(size, GFP_KERNEL)) == NULL)
                 return -ENOMEM;
 
         init_cdrom_command(&cgc, buf, size, CGC_DATA_READ);
@@ -2849,7 +2849,7 @@ static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
                 /* FIXME: we need upper bound checking, too!! */
                 if (lba < 0)
                         return -EINVAL;
-                cgc.buffer = (char *) kmalloc(blocksize, GFP_KERNEL);
+                cgc.buffer = kmalloc(blocksize, GFP_KERNEL);
                 if (cgc.buffer == NULL)
                         return -ENOMEM;
                 memset(&sense, 0, sizeof(sense));
@@ -3031,7 +3031,7 @@ static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
                 int size = sizeof(dvd_struct);
                 if (!CDROM_CAN(CDC_DVD))
                         return -ENOSYS;
-                if ((s = (dvd_struct *) kmalloc(size, GFP_KERNEL)) == NULL)
+                if ((s = kmalloc(size, GFP_KERNEL)) == NULL)
                         return -ENOMEM;
                 cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); 
                 if (copy_from_user(s, (dvd_struct __user *)arg, size)) {
diff --git a/drivers/cdrom/cm206.c b/drivers/cdrom/cm206.c
index e6d8e9ededea..b6c61bbb20e1 100644
--- a/drivers/cdrom/cm206.c
+++ b/drivers/cdrom/cm206.c
@@ -1420,7 +1420,7 @@ int __init cm206_init(void)
                 return -EIO;
         }
         printk(" adapter at 0x%x", cm206_base);
-        cd = (struct cm206_struct *) kmalloc(size, GFP_KERNEL);
+        cd = kmalloc(size, GFP_KERNEL);
         if (!cd)
                goto out_base;
         /* Now we have found the adaptor card, try to reset it. As we have
diff --git a/drivers/char/consolemap.c b/drivers/char/consolemap.c
index 04a12027a740..b99b7561260d 100644
--- a/drivers/char/consolemap.c
+++ b/drivers/char/consolemap.c
@@ -443,7 +443,7 @@ int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui)
         p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc;
         if (p && p->readonly) return -EIO;
         if (!p || --p->refcount) {
-                q = (struct uni_pagedir *)kmalloc(sizeof(*p), GFP_KERNEL);
+                q = kmalloc(sizeof(*p), GFP_KERNEL);
                 if (!q) {
                         if (p) p->refcount++;
                         return -ENOMEM;
diff --git a/drivers/char/lcd.c b/drivers/char/lcd.c
index da601fd6c07a..d649abbf0857 100644
--- a/drivers/char/lcd.c
+++ b/drivers/char/lcd.c
@@ -459,7 +459,7 @@ static int lcd_ioctl(struct inode *inode, struct file *file,
                             (&display, (struct lcd_display *) arg,
                              sizeof(struct lcd_display)))
                                 return -EFAULT;
-                        rom = (unsigned char *) kmalloc((128), GFP_ATOMIC);
+                        rom = kmalloc((128), GFP_ATOMIC);
                         if (rom == NULL) {
                                 printk(KERN_ERR LCD "kmalloc() failed in %s\n",
                                                 __FUNCTION__);
diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index b70b5388b5a8..b51d08be0bcf 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -525,7 +525,7 @@ static int lp_open(struct inode * inode, struct file * file)
                         return -EIO;
                 }
         }
-        lp_table[minor].lp_buffer = (char *) kmalloc(LP_BUFFER_SIZE, GFP_KERNEL);
+        lp_table[minor].lp_buffer = kmalloc(LP_BUFFER_SIZE, GFP_KERNEL);
         if (!lp_table[minor].lp_buffer) {
                 LP_F(minor) &= ~LP_BUSY;
                 return -ENOMEM;
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 5152cedd8878..f108c136800a 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -541,7 +541,7 @@ static int mgslpc_probe(struct pcmcia_device *link)
     if (debug_level >= DEBUG_LEVEL_INFO)
             printk("mgslpc_attach\n");
 
-    info = (MGSLPC_INFO *)kmalloc(sizeof(MGSLPC_INFO), GFP_KERNEL);
+    info = kmalloc(sizeof(MGSLPC_INFO), GFP_KERNEL);
     if (!info) {
             printk("Error can't allocate device instance data\n");
             return -ENOMEM;
diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c
index 167ebc84e8d7..245f03195b7c 100644
--- a/drivers/char/rio/riocmd.c
+++ b/drivers/char/rio/riocmd.c
@@ -556,7 +556,7 @@ struct CmdBlk *RIOGetCmdBlk(void)
 {
         struct CmdBlk *CmdBlkP;
 
-        CmdBlkP = (struct CmdBlk *)kmalloc(sizeof(struct CmdBlk), GFP_ATOMIC);
+        CmdBlkP = kmalloc(sizeof(struct CmdBlk), GFP_ATOMIC);
         if (CmdBlkP)
                 memset(CmdBlkP, 0, sizeof(struct CmdBlk));
         return CmdBlkP;
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index acc6fab601cc..3fa625db9e4b 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -4332,7 +4332,7 @@ static struct mgsl_struct* mgsl_allocate_device(void)
 {
         struct mgsl_struct *info;
         
-        info = (struct mgsl_struct *)kmalloc(sizeof(struct mgsl_struct),
+        info = kmalloc(sizeof(struct mgsl_struct),
                  GFP_KERNEL);
                  
         if (!info) {
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 53e8ccf94fe3..8f4d67afe5bf 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -2730,7 +2730,7 @@ static int startup(SLMP_INFO * info)
                 return 0;
 
         if (!info->tx_buf) {
-                info->tx_buf = (unsigned char *)kmalloc(info->max_frame_size, GFP_KERNEL);
+                info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
                 if (!info->tx_buf) {
                         printk(KERN_ERR"%s(%d):%s can't allocate transmit buffer\n",
                                 __FILE__,__LINE__,info->device_name);
@@ -3798,7 +3798,7 @@ static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
 {
         SLMP_INFO *info;
 
-        info = (SLMP_INFO *)kmalloc(sizeof(SLMP_INFO),
+        info = kmalloc(sizeof(SLMP_INFO),
                  GFP_KERNEL);
 
         if (!info) {
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index a8239dac994f..06c32a3e3ca4 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -784,7 +784,7 @@ int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines)
         if (new_cols == vc->vc_cols && new_rows == vc->vc_rows)
                 return 0;
 
-        newscreen = (unsigned short *) kmalloc(new_screen_size, GFP_USER);
+        newscreen = kmalloc(new_screen_size, GFP_USER);
         if (!newscreen)
                 return -ENOMEM;
 
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index 311493e7b409..dc8368ebb1ac 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -129,7 +129,7 @@ do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, struct kbd_str
                             !capable(CAP_SYS_RESOURCE))
                                 return -EPERM;
 
-                        key_map = (ushort *) kmalloc(sizeof(plain_map),
+                        key_map = kmalloc(sizeof(plain_map),
                                                      GFP_KERNEL);
                         if (!key_map)
                                 return -ENOMEM;
@@ -259,7 +259,7 @@ do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
                     sz = 256;
                     while (sz < funcbufsize - funcbufleft + delta)
                       sz <<= 1;
-                    fnw = (char *) kmalloc(sz, GFP_KERNEL);
+                    fnw = kmalloc(sz, GFP_KERNEL);
                     if(!fnw) {
                       ret = -ENOMEM;
                       goto reterr;
diff --git a/drivers/fc4/fc.c b/drivers/fc4/fc.c
index ca4e67a022d0..22b62b3cd14e 100644
--- a/drivers/fc4/fc.c
+++ b/drivers/fc4/fc.c
@@ -266,7 +266,7 @@ static void fcp_report_map_done(fc_channel *fc, int i, int status)
                         printk ("FC: Bad magic from REPORT_AL_MAP on %s - %08x\n", fc->name, p->magic);
                         fc->state = FC_STATE_OFFLINE;
                 } else {
-                        fc->posmap = (fcp_posmap *)kzalloc(sizeof(fcp_posmap)+p->len, GFP_KERNEL);
+                        fc->posmap = kzalloc(sizeof(fcp_posmap)+p->len, GFP_KERNEL);
                         if (!fc->posmap) {
                                 printk("FC: Not enough memory, offlining channel\n");
                                 fc->state = FC_STATE_OFFLINE;
@@ -355,7 +355,7 @@ void fcp_register(fc_channel *fc, u8 type, int unregister)
                         for (i = fc->can_queue; i < fc->scsi_bitmap_end; i++)
                                 set_bit (i, fc->scsi_bitmap);
                         fc->scsi_free = fc->can_queue;
-                        fc->cmd_slots = (fcp_cmnd **)kzalloc(slots * sizeof(fcp_cmnd*), GFP_KERNEL);
+                        fc->cmd_slots = kzalloc(slots * sizeof(fcp_cmnd*), GFP_KERNEL);
                         fc->abort_count = 0;
                 } else {
                         fc->scsi_name[0] = 0;
@@ -933,7 +933,7 @@ int fcp_scsi_dev_reset(struct scsi_cmnd *SCpnt)
         DECLARE_MUTEX_LOCKED(sem);
 
         if (!fc->rst_pkt) {
-                fc->rst_pkt = (struct scsi_cmnd *) kmalloc(sizeof(SCpnt), GFP_KERNEL);
+                fc->rst_pkt = kmalloc(sizeof(SCpnt), GFP_KERNEL);
                 if (!fc->rst_pkt) return FAILED;
                 
                 fcmd = FCP_CMND(fc->rst_pkt);
@@ -1107,7 +1107,7 @@ int fc_do_plogi(fc_channel *fc, unsigned char alpa, fc_wwn *node, fc_wwn *nport)
         logi *l;
         int status;
 
-        l = (logi *)kzalloc(2 * sizeof(logi), GFP_KERNEL);
+        l = kzalloc(2 * sizeof(logi), GFP_KERNEL);
         if (!l) return -ENOMEM;
         l->code = LS_PLOGI;
         memcpy (&l->nport_wwn, &fc->wwn_nport, sizeof(fc_wwn));
@@ -1141,7 +1141,7 @@ int fc_do_prli(fc_channel *fc, unsigned char alpa)
         prli *p;
         int status;
 
-        p = (prli *)kzalloc(2 * sizeof(prli), GFP_KERNEL);
+        p = kzalloc(2 * sizeof(prli), GFP_KERNEL);
         if (!p) return -ENOMEM;
         p->code = LS_PRLI;
         p->params[0] = 0x08002000;
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index e3a267622bb6..d33717c8afd4 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -2147,7 +2147,7 @@ static int ide_floppy_probe(ide_drive_t *drive)
                 printk("ide-floppy: passing drive %s to ide-scsi emulation.\n", drive->name);
                 goto failed;
         }
-        if ((floppy = (idefloppy_floppy_t *) kzalloc (sizeof (idefloppy_floppy_t), GFP_KERNEL)) == NULL) {
+        if ((floppy = kzalloc(sizeof (idefloppy_floppy_t), GFP_KERNEL)) == NULL) {
                 printk (KERN_ERR "ide-floppy: %s: Can't allocate a floppy structure\n", drive->name);
                 goto failed;
         }
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index e2f4bb549063..b3bcd1d7315e 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -2573,11 +2573,11 @@ static idetape_stage_t *__idetape_kmalloc_stage (idetape_tape_t *tape, int full,
         int pages = tape->pages_per_stage;
         char *b_data = NULL;
 
-        if ((stage = (idetape_stage_t *) kmalloc (sizeof (idetape_stage_t),GFP_KERNEL)) == NULL)
+        if ((stage = kmalloc(sizeof (idetape_stage_t),GFP_KERNEL)) == NULL)
                 return NULL;
         stage->next = NULL;
 
-        bh = stage->bh = (struct idetape_bh *)kmalloc(sizeof(struct idetape_bh), GFP_KERNEL);
+        bh = stage->bh = kmalloc(sizeof(struct idetape_bh), GFP_KERNEL);
         if (bh == NULL)
                 goto abort;
         bh->b_reqnext = NULL;
@@ -2607,7 +2607,7 @@ static idetape_stage_t *__idetape_kmalloc_stage (idetape_tape_t *tape, int full,
                         continue;
                 }
                 prev_bh = bh;
-                if ((bh = (struct idetape_bh *)kmalloc(sizeof(struct idetape_bh), GFP_KERNEL)) == NULL) {
+                if ((bh = kmalloc(sizeof(struct idetape_bh), GFP_KERNEL)) == NULL) {
                         free_page((unsigned long) b_data);
                         goto abort;
                 }
@@ -4860,7 +4860,7 @@ static int ide_tape_probe(ide_drive_t *drive)
                 printk(KERN_WARNING "ide-tape: Use drive %s with ide-scsi emulation and osst.\n", drive->name);
                 printk(KERN_WARNING "ide-tape: OnStream support will be removed soon from ide-tape!\n");
         }
-        tape = (idetape_tape_t *) kzalloc (sizeof (idetape_tape_t), GFP_KERNEL);
+        tape = kzalloc(sizeof (idetape_tape_t), GFP_KERNEL);
         if (tape == NULL) {
                 printk(KERN_ERR "ide-tape: %s: Can't allocate a tape structure\n", drive->name);
                 goto failed;
diff --git a/drivers/isdn/act2000/act2000_isa.c b/drivers/isdn/act2000/act2000_isa.c
index 3cac23739344..09ea50dd3459 100644
--- a/drivers/isdn/act2000/act2000_isa.c
+++ b/drivers/isdn/act2000/act2000_isa.c
@@ -408,7 +408,7 @@ act2000_isa_download(act2000_card * card, act2000_ddef __user * cb)
         p = cblock.buffer;
         if (!access_ok(VERIFY_READ, p, length))
                 return -EFAULT;
-        buf = (u_char *) kmalloc(1024, GFP_KERNEL);
+        buf = kmalloc(1024, GFP_KERNEL);
         if (!buf)
                 return -ENOMEM;
         timeout = 0;
diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index 097bfa7bc323..c4d438c17dab 100644
--- a/drivers/isdn/capi/capidrv.c
+++ b/drivers/isdn/capi/capidrv.c
@@ -2013,7 +2013,7 @@ static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
         strcpy(card->name, id);
         card->contrnr = contr;
         card->nbchan = profp->nbchannel;
-        card->bchans = (capidrv_bchan *) kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
+        card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
         if (!card->bchans) {
                 printk(KERN_WARNING
                 "capidrv: (%s) Could not allocate bchan-structs.\n", id);
diff --git a/drivers/isdn/divert/divert_procfs.c b/drivers/isdn/divert/divert_procfs.c
index 399b316111f7..06967da7c4a8 100644
--- a/drivers/isdn/divert/divert_procfs.c
+++ b/drivers/isdn/divert/divert_procfs.c
@@ -45,7 +45,7 @@ put_info_buffer(char *cp)
                 return;
         if (!*cp)
                 return;
-        if (!(ib = (struct divert_info *) kmalloc(sizeof(struct divert_info) + strlen(cp), GFP_ATOMIC)))
+        if (!(ib = kmalloc(sizeof(struct divert_info) + strlen(cp), GFP_ATOMIC)))
                  return;        /* no memory */
         strcpy(ib->info_start, cp);     /* set output string */
         ib->next = NULL;
diff --git a/drivers/isdn/divert/isdn_divert.c b/drivers/isdn/divert/isdn_divert.c
index 03319ea5aa0c..7d97d54588d9 100644
--- a/drivers/isdn/divert/isdn_divert.c
+++ b/drivers/isdn/divert/isdn_divert.c
@@ -153,7 +153,7 @@ int cf_command(int drvid, int mode,
   *ielenp = p - ielenp - 1; /* set total IE length */ 
 
   /* allocate mem for information struct */  
-  if (!(cs = (struct call_struc *) kmalloc(sizeof(struct call_struc), GFP_ATOMIC))) 
+  if (!(cs = kmalloc(sizeof(struct call_struc), GFP_ATOMIC)))
              return(-ENOMEM); /* no memory */
   init_timer(&cs->timer);
   cs->info[0] = '\0';
@@ -276,7 +276,7 @@ int insertrule(int idx, divert_rule *newrule)
 { struct deflect_struc *ds,*ds1=NULL;
   unsigned long flags;
 
-  if (!(ds = (struct deflect_struc *) kmalloc(sizeof(struct deflect_struc), 
+  if (!(ds = kmalloc(sizeof(struct deflect_struc),
                                               GFP_KERNEL))) 
     return(-ENOMEM); /* no memory */
 
@@ -451,7 +451,7 @@ static int isdn_divert_icall(isdn_ctrl *ic)
            if (dv->rule.action == DEFLECT_PROCEED)
             if ((!if_used) || ((!extern_wait_max) && (!dv->rule.waittime))) 
               return(0); /* no external deflection needed */  
-           if (!(cs = (struct call_struc *) kmalloc(sizeof(struct call_struc), GFP_ATOMIC))) 
+           if (!(cs = kmalloc(sizeof(struct call_struc), GFP_ATOMIC)))
              return(0); /* no memory */
            init_timer(&cs->timer);
            cs->info[0] = '\0';
diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c
index 8e2b03889f3c..94a935089119 100644
--- a/drivers/isdn/hysdn/hysdn_procconf.c
+++ b/drivers/isdn/hysdn/hysdn_procconf.c
@@ -275,7 +275,7 @@ hysdn_conf_open(struct inode *ino, struct file *filep)
         } else if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) {
                 /* read access -> output card info data */
 
-                if (!(tmp = (char *) kmalloc(INFO_OUT_LEN * 2 + 2, GFP_KERNEL))) {
+                if (!(tmp = kmalloc(INFO_OUT_LEN * 2 + 2, GFP_KERNEL))) {
                         unlock_kernel();
                         return (-EFAULT);       /* out of memory */
                 }
diff --git a/drivers/isdn/hysdn/hysdn_proclog.c b/drivers/isdn/hysdn/hysdn_proclog.c
index f241f5e551cb..375d956884d7 100644
--- a/drivers/isdn/hysdn/hysdn_proclog.c
+++ b/drivers/isdn/hysdn/hysdn_proclog.c
@@ -111,7 +111,7 @@ put_log_buffer(hysdn_card * card, char *cp)
         if (pd->if_used <= 0)
                 return;         /* no open file for read */
 
-        if (!(ib = (struct log_data *) kmalloc(sizeof(struct log_data) + strlen(cp), GFP_ATOMIC)))
+        if (!(ib = kmalloc(sizeof(struct log_data) + strlen(cp), GFP_ATOMIC)))
                  return;        /* no memory */
         strcpy(ib->log_start, cp);      /* set output string */
         ib->next = NULL;
diff --git a/drivers/isdn/i4l/isdn_audio.c b/drivers/isdn/i4l/isdn_audio.c
index 2cc56d6a9fae..fb350c567c6b 100644
--- a/drivers/isdn/i4l/isdn_audio.c
+++ b/drivers/isdn/i4l/isdn_audio.c
@@ -328,7 +328,7 @@ adpcm_state *
 isdn_audio_adpcm_init(adpcm_state * s, int nbits)
 {
         if (!s)
-                s = (adpcm_state *) kmalloc(sizeof(adpcm_state), GFP_ATOMIC);
+                s = kmalloc(sizeof(adpcm_state), GFP_ATOMIC);
         if (s) {
                 s->a = 0;
                 s->d = 5;
@@ -343,7 +343,7 @@ dtmf_state *
 isdn_audio_dtmf_init(dtmf_state * s)
 {
         if (!s)
-                s = (dtmf_state *) kmalloc(sizeof(dtmf_state), GFP_ATOMIC);
+                s = kmalloc(sizeof(dtmf_state), GFP_ATOMIC);
         if (s) {
                 s->idx = 0;
                 s->last = ' ';
@@ -621,7 +621,7 @@ silence_state *
 isdn_audio_silence_init(silence_state * s)
 {
         if (!s)
-                s = (silence_state *) kmalloc(sizeof(silence_state), GFP_ATOMIC);
+                s = kmalloc(sizeof(silence_state), GFP_ATOMIC);
         if (s) {
                 s->idx = 0;
                 s->state = 0;
diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index c36c817578cb..838b3734e2b6 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -2948,7 +2948,7 @@ isdn_net_addphone(isdn_net_ioctl_phone * phone)
         isdn_net_phone *n;
 
         if (p) {
-                if (!(n = (isdn_net_phone *) kmalloc(sizeof(isdn_net_phone), GFP_KERNEL)))
+                if (!(n = kmalloc(sizeof(isdn_net_phone), GFP_KERNEL)))
                         return -ENOMEM;
                 strcpy(n->num, phone->phone);
                 n->next = p->local->phone[phone->outgoing & 1];
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 43811795b46b..1726131b20be 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -717,7 +717,7 @@ isdn_ppp_fill_rq(unsigned char *buf, int len, int proto, int slot)
                 printk(KERN_DEBUG "ippp: device not activated.\n");
                 return 0;
         }
-        nbuf = (unsigned char *) kmalloc(len + 4, GFP_ATOMIC);
+        nbuf = kmalloc(len + 4, GFP_ATOMIC);
         if (!nbuf) {
                 printk(KERN_WARNING "ippp: Can't alloc buf\n");
                 return 0;
diff --git a/drivers/isdn/pcbit/layer2.c b/drivers/isdn/pcbit/layer2.c
index 6ff85574e941..eafcce5e656a 100644
--- a/drivers/isdn/pcbit/layer2.c
+++ b/drivers/isdn/pcbit/layer2.c
@@ -100,7 +100,7 @@ pcbit_l2_write(struct pcbit_dev *dev, ulong msg, ushort refnum,
                 dev_kfree_skb(skb);
                 return -1;
         }
-        if ((frame = (struct frame_buf *) kmalloc(sizeof(struct frame_buf),
+        if ((frame = kmalloc(sizeof(struct frame_buf),
                                                   GFP_ATOMIC)) == NULL) {
                 printk(KERN_WARNING "pcbit_2_write: kmalloc failed\n");
                 dev_kfree_skb(skb);
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index d43ea81d6df9..7cec6de5e2b0 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -828,7 +828,7 @@ static ssize_t adb_write(struct file *file, const char __user *buf,
         if (!access_ok(VERIFY_READ, buf, count))
                 return -EFAULT;
 
-        req = (struct adb_request *) kmalloc(sizeof(struct adb_request),
+        req = kmalloc(sizeof(struct adb_request),
                                              GFP_KERNEL);
         if (req == NULL)
                 return -ENOMEM;
diff --git a/drivers/macintosh/apm_emu.c b/drivers/macintosh/apm_emu.c
index 8862a83b8d84..4300c628f8af 100644
--- a/drivers/macintosh/apm_emu.c
+++ b/drivers/macintosh/apm_emu.c
@@ -321,7 +321,7 @@ static int do_open(struct inode * inode, struct file * filp)
 {
         struct apm_user *       as;
 
-        as = (struct apm_user *)kmalloc(sizeof(*as), GFP_KERNEL);
+        as = kmalloc(sizeof(*as), GFP_KERNEL);
         if (as == NULL) {
                 printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n",
                        sizeof(*as));
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index d9986f3a3fbf..93e6ef9233f9 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -847,7 +847,7 @@ pbook_pci_save(void)
         n_pbook_pci_saves = npci;
         if (npci == 0)
                 return;
-        ps = (struct pci_save *) kmalloc(npci * sizeof(*ps), GFP_KERNEL);
+        ps = kmalloc(npci * sizeof(*ps), GFP_KERNEL);
         pbook_pci_saves = ps;
         if (ps == NULL)
                 return;
diff --git a/drivers/media/dvb/bt8xx/dst_ca.c b/drivers/media/dvb/bt8xx/dst_ca.c
index 240ad084fa78..50bc32a8bd55 100644
--- a/drivers/media/dvb/bt8xx/dst_ca.c
+++ b/drivers/media/dvb/bt8xx/dst_ca.c
@@ -480,7 +480,7 @@ static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message,
         struct ca_msg *hw_buffer;
         int result = 0;
 
-        if ((hw_buffer = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
+        if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
                 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
                 return -ENOMEM;
         }
diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.c b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
index 80a85cb4975f..3e35931af35d 100644
--- a/drivers/media/dvb/bt8xx/dvb-bt8xx.c
+++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
@@ -657,7 +657,7 @@ static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
 
         case BTTV_BOARD_TWINHAN_DST:
                 /*      DST is not a frontend driver !!!                */
-                state = (struct dst_state *) kmalloc(sizeof (struct dst_state), GFP_KERNEL);
+                state = kmalloc(sizeof (struct dst_state), GFP_KERNEL);
                 if (!state) {
                         printk("dvb_bt8xx: No memory\n");
                         break;
diff --git a/drivers/media/dvb/ttusb-dec/ttusbdecfe.c b/drivers/media/dvb/ttusb-dec/ttusbdecfe.c
index 42f39a89bc4d..a6fb1d6a7b5d 100644
--- a/drivers/media/dvb/ttusb-dec/ttusbdecfe.c
+++ b/drivers/media/dvb/ttusb-dec/ttusbdecfe.c
@@ -195,7 +195,7 @@ struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* conf
         struct ttusbdecfe_state* state = NULL;
 
         /* allocate memory for the internal state */
-        state = (struct ttusbdecfe_state*) kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
+        state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
         if (state == NULL)
                 return NULL;
 
@@ -215,7 +215,7 @@ struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* conf
         struct ttusbdecfe_state* state = NULL;
 
         /* allocate memory for the internal state */
-        state = (struct ttusbdecfe_state*) kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
+        state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
         if (state == NULL)
                 return NULL;
 
diff --git a/drivers/media/video/dabusb.c b/drivers/media/video/dabusb.c
index b1012e92ee04..917021fc2993 100644
--- a/drivers/media/video/dabusb.c
+++ b/drivers/media/video/dabusb.c
@@ -218,7 +218,7 @@ static int dabusb_alloc_buffers (pdabusb_t s)
                  pipesize, packets, transfer_buffer_length);
 
         while (buffers < (s->total_buffer_size << 10)) {
-                b = (pbuff_t) kzalloc (sizeof (buff_t), GFP_KERNEL);
+                b = kzalloc(sizeof (buff_t), GFP_KERNEL);
                 if (!b) {
                         err("kzalloc(sizeof(buff_t))==NULL");
                         goto err;
@@ -659,7 +659,7 @@ static int dabusb_ioctl (struct inode *inode, struct file *file, unsigned int cm
         switch (cmd) {
 
         case IOCTL_DAB_BULK:
-                pbulk = (pbulk_transfer_t) kmalloc (sizeof (bulk_transfer_t), GFP_KERNEL);
+                pbulk = kmalloc(sizeof (bulk_transfer_t), GFP_KERNEL);
 
                 if (!pbulk) {
                         ret = -ENOMEM;
diff --git a/drivers/media/video/planb.c b/drivers/media/video/planb.c
index 368d6e219fa4..86d2884e16c6 100644
--- a/drivers/media/video/planb.c
+++ b/drivers/media/video/planb.c
@@ -138,7 +138,7 @@ static int grabbuf_alloc(struct planb *pb)
                 + MAX_LNUM
 #endif /* PLANB_GSCANLINE */
                 );
-        if ((pb->rawbuf = (unsigned char**) kmalloc (npage
+        if ((pb->rawbuf = kmalloc(npage
                                 * sizeof(unsigned long), GFP_KERNEL)) == 0)
                 return -ENOMEM;
         for (i = 0; i < npage; i++) {
diff --git a/drivers/media/video/usbvideo/usbvideo.c b/drivers/media/video/usbvideo/usbvideo.c
index d8b88024bc2f..b560c9d7c516 100644
--- a/drivers/media/video/usbvideo/usbvideo.c
+++ b/drivers/media/video/usbvideo/usbvideo.c
@@ -690,7 +690,7 @@ int usbvideo_register(
         }
 
         base_size = num_cams * sizeof(struct uvd) + sizeof(struct usbvideo);
-        cams = (struct usbvideo *) kzalloc(base_size, GFP_KERNEL);
+        cams = kzalloc(base_size, GFP_KERNEL);
         if (cams == NULL) {
                 err("Failed to allocate %d. bytes for usbvideo struct", base_size);
                 return -ENOMEM;
diff --git a/drivers/media/video/videocodec.c b/drivers/media/video/videocodec.c
index 2ae3fb250630..290e64135650 100644
--- a/drivers/media/video/videocodec.c
+++ b/drivers/media/video/videocodec.c
@@ -346,7 +346,7 @@ videocodec_build_table (void)
                 size);
 
         kfree(videocodec_buf);
-        videocodec_buf = (char *) kmalloc(size, GFP_KERNEL);
+        videocodec_buf = kmalloc(size, GFP_KERNEL);
 
         i = 0;
         i += scnprintf(videocodec_buf + i, size - 1,
diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index 1de30d711671..e33d446e7493 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -186,7 +186,7 @@ static int i2o_cfg_parms(unsigned long arg, unsigned int type)
         if (!dev)
                 return -ENXIO;
 
-        ops = (u8 *) kmalloc(kcmd.oplen, GFP_KERNEL);
+        ops = kmalloc(kcmd.oplen, GFP_KERNEL);
         if (!ops)
                 return -ENOMEM;
 
@@ -199,7 +199,7 @@ static int i2o_cfg_parms(unsigned long arg, unsigned int type)
          * It's possible to have a _very_ large table
          * and that the user asks for all of it at once...
          */
-        res = (u8 *) kmalloc(65536, GFP_KERNEL);
+        res = kmalloc(65536, GFP_KERNEL);
         if (!res) {
                 kfree(ops);
                 return -ENOMEM;
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 5db716045927..0a7e86859bf1 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -459,7 +459,7 @@ add_dataflash(struct spi_device *spi, char *name,
         struct mtd_info                 *device;
         struct flash_platform_data      *pdata = spi->dev.platform_data;
 
-        priv = (struct dataflash *) kzalloc(sizeof *priv, GFP_KERNEL);
+        priv = kzalloc(sizeof *priv, GFP_KERNEL);
         if (!priv)
                 return -ENOMEM;
 
diff --git a/drivers/net/appletalk/ipddp.c b/drivers/net/appletalk/ipddp.c
index b98592a8bac8..f22e46dfd770 100644
--- a/drivers/net/appletalk/ipddp.c
+++ b/drivers/net/appletalk/ipddp.c
@@ -186,7 +186,7 @@ static int ipddp_xmit(struct sk_buff *skb, struct net_device *dev)
  */
 static int ipddp_create(struct ipddp_route *new_rt)
 {
-        struct ipddp_route *rt =(struct ipddp_route*) kmalloc(sizeof(*rt), GFP_KERNEL);
+        struct ipddp_route *rt = kmalloc(sizeof(*rt), GFP_KERNEL);
 
         if (rt == NULL)
                 return -ENOMEM;
diff --git a/drivers/net/bsd_comp.c b/drivers/net/bsd_comp.c
index bae1de1e7802..7845eaf6f29f 100644
--- a/drivers/net/bsd_comp.c
+++ b/drivers/net/bsd_comp.c
@@ -395,7 +395,7 @@ static void *bsd_alloc (unsigned char *options, int opt_len, int decomp)
  * Allocate the main control structure for this instance.
  */
     maxmaxcode = MAXCODE(bits);
-    db         = (struct bsd_db *) kmalloc (sizeof (struct bsd_db),
+    db         = kmalloc(sizeof (struct bsd_db),
                                             GFP_KERNEL);
     if (!db)
       {
diff --git a/drivers/net/irda/donauboe.c b/drivers/net/irda/donauboe.c
index 16620bd97fbf..11af0ae7510e 100644
--- a/drivers/net/irda/donauboe.c
+++ b/drivers/net/irda/donauboe.c
@@ -1603,7 +1603,7 @@ toshoboe_open (struct pci_dev *pci_dev, const struct pci_device_id *pdid)
   irda_qos_bits_to_value (&self->qos);
 
   /* Allocate twice the size to guarantee alignment */
-  self->ringbuf = (void *) kmalloc (OBOE_RING_LEN << 1, GFP_KERNEL);
+  self->ringbuf = kmalloc(OBOE_RING_LEN << 1, GFP_KERNEL);
   if (!self->ringbuf)
     {
       printk (KERN_ERR DRIVER_NAME ": can't allocate DMA buffers\n");
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 6e95645e7245..3ca1082ec776 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -1747,7 +1747,7 @@ static int irda_usb_probe(struct usb_interface *intf,
         /* Don't change this buffer size and allocation without doing
          * some heavy and complete testing. Don't ask why :-(
          * Jean II */
-        self->speed_buff = (char *) kmalloc(IRDA_USB_SPEED_MTU, GFP_KERNEL);
+        self->speed_buff = kmalloc(IRDA_USB_SPEED_MTU, GFP_KERNEL);
         if (self->speed_buff == NULL) 
                 goto err_out_3;
 
diff --git a/drivers/net/irda/irport.c b/drivers/net/irda/irport.c
index 654a68b490ae..3098960dc2a1 100644
--- a/drivers/net/irda/irport.c
+++ b/drivers/net/irda/irport.c
@@ -164,7 +164,7 @@ irport_open(int i, unsigned int iobase, unsigned int irq)
         
         /* Allocate memory if needed */
         if (self->tx_buff.truesize > 0) {
-                self->tx_buff.head = (__u8 *) kmalloc(self->tx_buff.truesize, 
+                self->tx_buff.head = kmalloc(self->tx_buff.truesize,
                                                       GFP_KERNEL);
                 if (self->tx_buff.head == NULL) {
                         IRDA_ERROR("%s(), can't allocate memory for "
diff --git a/drivers/net/lp486e.c b/drivers/net/lp486e.c
index b833016f1825..177c502f7385 100644
--- a/drivers/net/lp486e.c
+++ b/drivers/net/lp486e.c
@@ -884,7 +884,7 @@ static int i596_start_xmit (struct sk_buff *skb, struct net_device *dev) {
 
         dev->trans_start = jiffies;
 
-        tx_cmd = (struct tx_cmd *) kmalloc ((sizeof (struct tx_cmd) + sizeof (struct i596_tbd)), GFP_ATOMIC);
+        tx_cmd = kmalloc((sizeof (struct tx_cmd) + sizeof (struct i596_tbd)), GFP_ATOMIC);
         if (tx_cmd == NULL) {
                 printk(KERN_WARNING "%s: i596_xmit Memory squeeze, dropping packet.\n", dev->name);
                 lp->stats.tx_dropped++;
@@ -1266,7 +1266,7 @@ static void set_multicast_list(struct net_device *dev) {
         if (dev->mc_count > 0) {
                 struct dev_mc_list *dmi;
                 char *cp;
-                cmd = (struct i596_cmd *)kmalloc(sizeof(struct i596_cmd)+2+dev->mc_count*6, GFP_ATOMIC);
+                cmd = kmalloc(sizeof(struct i596_cmd)+2+dev->mc_count*6, GFP_ATOMIC);
                 if (cmd == NULL) {
                         printk (KERN_ERR "%s: set_multicast Memory squeeze.\n", dev->name);
                         return;
diff --git a/drivers/net/ppp_deflate.c b/drivers/net/ppp_deflate.c
index f54c55242f4a..72c8d6628f58 100644
--- a/drivers/net/ppp_deflate.c
+++ b/drivers/net/ppp_deflate.c
@@ -121,7 +121,7 @@ static void *z_comp_alloc(unsigned char *options, int opt_len)
         if (w_size < DEFLATE_MIN_SIZE || w_size > DEFLATE_MAX_SIZE)
                 return NULL;
 
-        state = (struct ppp_deflate_state *) kmalloc(sizeof(*state),
+        state = kmalloc(sizeof(*state),
                                                      GFP_KERNEL);
         if (state == NULL)
                 return NULL;
@@ -341,7 +341,7 @@ static void *z_decomp_alloc(unsigned char *options, int opt_len)
         if (w_size < DEFLATE_MIN_SIZE || w_size > DEFLATE_MAX_SIZE)
                 return NULL;
 
-        state = (struct ppp_deflate_state *) kmalloc(sizeof(*state), GFP_KERNEL);
+        state = kmalloc(sizeof(*state), GFP_KERNEL);
         if (state == NULL)
                 return NULL;
 
diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c
index f3655fd772f5..d5bdd2574659 100644
--- a/drivers/net/ppp_mppe.c
+++ b/drivers/net/ppp_mppe.c
@@ -200,7 +200,7 @@ static void *mppe_alloc(unsigned char *options, int optlen)
             || options[0] != CI_MPPE || options[1] != CILEN_MPPE)
                 goto out;
 
-        state = (struct ppp_mppe_state *) kmalloc(sizeof(*state), GFP_KERNEL);
+        state = kmalloc(sizeof(*state), GFP_KERNEL);
         if (state == NULL)
                 goto out;
 
diff --git a/drivers/net/slip.c b/drivers/net/slip.c
index 39c2152a07f4..a0806d262fc6 100644
--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -229,10 +229,10 @@ static int sl_realloc_bufs(struct slip *sl, int mtu)
         if (len < 576 * 2)
                 len = 576 * 2;
 
-        xbuff = (unsigned char *) kmalloc (len + 4, GFP_ATOMIC);
-        rbuff = (unsigned char *) kmalloc (len + 4, GFP_ATOMIC);
+        xbuff = kmalloc(len + 4, GFP_ATOMIC);
+        rbuff = kmalloc(len + 4, GFP_ATOMIC);
 #ifdef SL_INCLUDE_CSLIP
-        cbuff = (unsigned char *) kmalloc (len + 4, GFP_ATOMIC);
+        cbuff = kmalloc(len + 4, GFP_ATOMIC);
 #endif
 
 
diff --git a/drivers/net/wan/hostess_sv11.c b/drivers/net/wan/hostess_sv11.c
index a4f735723c41..a02c5fb40567 100644
--- a/drivers/net/wan/hostess_sv11.c
+++ b/drivers/net/wan/hostess_sv11.c
@@ -231,7 +231,7 @@ static struct sv11_device *sv11_init(int iobase, int irq)
                 return NULL;
         }
         
-        sv=(struct sv11_device *)kmalloc(sizeof(struct sv11_device), GFP_KERNEL);
+        sv = kmalloc(sizeof(struct sv11_device), GFP_KERNEL);
         if(!sv)
                 goto fail3;
                         
diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c
index 36d1c3ff7078..62184dee377c 100644
--- a/drivers/net/wan/pc300_drv.c
+++ b/drivers/net/wan/pc300_drv.c
@@ -3455,7 +3455,7 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         if ((err = pci_enable_device(pdev)) < 0)
                 return err;
 
-        card = (pc300_t *) kmalloc(sizeof(pc300_t), GFP_KERNEL);
+        card = kmalloc(sizeof(pc300_t), GFP_KERNEL);
         if (card == NULL) {
                 printk("PC300 found at RAM 0x%016llx, "
                        "but could not allocate card structure.\n",
diff --git a/drivers/net/wan/pc300_tty.c b/drivers/net/wan/pc300_tty.c
index b2a23aed4428..5873c346e7e9 100644
--- a/drivers/net/wan/pc300_tty.c
+++ b/drivers/net/wan/pc300_tty.c
@@ -784,7 +784,7 @@ void cpc_tty_receive(pc300dev_t *pc300dev)
                         continue;
                 } 
                 
-                new = (st_cpc_rx_buf *)kmalloc(rx_len + sizeof(st_cpc_rx_buf), GFP_ATOMIC);
+                new = kmalloc(rx_len + sizeof(st_cpc_rx_buf), GFP_ATOMIC);
                 if (new == 0) {
                         cpc_tty_rx_disc_frame(pc300chan);
                         continue;
diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index 9c3ccc669143..1c9edd97accd 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -123,8 +123,8 @@ static int x25_asy_change_mtu(struct net_device *dev, int newmtu)
         unsigned char *xbuff, *rbuff;
         int len = 2* newmtu;
 
-        xbuff = (unsigned char *) kmalloc (len + 4, GFP_ATOMIC);
-        rbuff = (unsigned char *) kmalloc (len + 4, GFP_ATOMIC);
+        xbuff = kmalloc(len + 4, GFP_ATOMIC);
+        rbuff = kmalloc(len + 4, GFP_ATOMIC);
 
         if (xbuff == NULL || rbuff == NULL)  
         {
@@ -465,11 +465,11 @@ static int x25_asy_open(struct net_device *dev)
 
         len = dev->mtu * 2;
 
-        sl->rbuff = (unsigned char *) kmalloc(len + 4, GFP_KERNEL);
+        sl->rbuff = kmalloc(len + 4, GFP_KERNEL);
         if (sl->rbuff == NULL)   {
                 goto norbuff;
         }
-        sl->xbuff = (unsigned char *) kmalloc(len + 4, GFP_KERNEL);
+        sl->xbuff = kmalloc(len + 4, GFP_KERNEL);
         if (sl->xbuff == NULL)   {
                 goto noxbuff;
         }
diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index 974a8e5bec8b..efb8cf3bd8ad 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -1253,7 +1253,7 @@ static char * ap_auth_make_challenge(struct ap_data *ap)
                         return NULL;
         }
 
-        tmpbuf = (char *) kmalloc(WLAN_AUTH_CHALLENGE_LEN, GFP_ATOMIC);
+        tmpbuf = kmalloc(WLAN_AUTH_CHALLENGE_LEN, GFP_ATOMIC);
         if (tmpbuf == NULL) {
                 PDEBUG(DEBUG_AP, "AP: kmalloc failed for challenge\n");
                 return NULL;
diff --git a/drivers/net/wireless/hostap/hostap_download.c b/drivers/net/wireless/hostap/hostap_download.c
index 24fc387bba67..c7678e67697d 100644
--- a/drivers/net/wireless/hostap/hostap_download.c
+++ b/drivers/net/wireless/hostap/hostap_download.c
@@ -201,7 +201,7 @@ static u8 * prism2_read_pda(struct net_device *dev)
                 0x7f0002 /* Intel PRO/Wireless 2011B (PCI) */,
         };
 
-        buf = (u8 *) kmalloc(PRISM2_PDA_SIZE, GFP_KERNEL);
+        buf = kmalloc(PRISM2_PDA_SIZE, GFP_KERNEL);
         if (buf == NULL)
                 return NULL;
 
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index a394a23b9a20..3079378fb8cd 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -2252,7 +2252,7 @@ static int hostap_tx_compl_read(local_info_t *local, int error,
         if (txdesc->sw_support) {
                 len = le16_to_cpu(txdesc->data_len);
                 if (len < PRISM2_DATA_MAXLEN) {
-                        *payload = (char *) kmalloc(len, GFP_ATOMIC);
+                        *payload = kmalloc(len, GFP_ATOMIC);
                         if (*payload == NULL ||
                             hfa384x_from_bap(dev, BAP0, *payload, len)) {
                                 PDEBUG(DEBUG_EXTRA, "%s: could not read TX "
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index 3b7b8063ff1c..cb08bc5db2bd 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -3829,7 +3829,7 @@ static int prism2_ioctl_priv_hostapd(local_info_t *local, struct iw_point *p)
             p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
                 return -EINVAL;
 
-        param = (struct prism2_hostapd_param *) kmalloc(p->length, GFP_KERNEL);
+        param = kmalloc(p->length, GFP_KERNEL);
         if (param == NULL)
                 return -ENOMEM;
 
diff --git a/drivers/net/wireless/hostap/hostap_main.c b/drivers/net/wireless/hostap/hostap_main.c
index 0796be9d9e77..04c19cefa1da 100644
--- a/drivers/net/wireless/hostap/hostap_main.c
+++ b/drivers/net/wireless/hostap/hostap_main.c
@@ -250,7 +250,7 @@ u16 hostap_tx_callback_register(local_info_t *local,
         unsigned long flags;
         struct hostap_tx_callback_info *entry;
 
-        entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry),
+        entry = kmalloc(sizeof(*entry),
                                                            GFP_ATOMIC);
         if (entry == NULL)
                 return 0;
diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
index dd9ba4aad7bb..0e94fbbf7a94 100644
--- a/drivers/net/wireless/ipw2100.c
+++ b/drivers/net/wireless/ipw2100.c
@@ -2246,7 +2246,7 @@ static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
         if (priv->snapshot[0])
                 return 1;
         for (i = 0; i < 0x30; i++) {
-                priv->snapshot[i] = (u8 *) kmalloc(0x1000, GFP_ATOMIC);
+                priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
                 if (!priv->snapshot[i]) {
                         IPW_DEBUG_INFO("%s: Error allocating snapshot "
                                        "buffer %d\n", priv->net_dev->name, i);
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index 96606ed10076..838d510213c6 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -2775,7 +2775,7 @@ prism54_hostapd(struct net_device *ndev, struct iw_point *p)
            p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
                return -EINVAL;
 
-       param = (struct prism2_hostapd_param *) kmalloc(p->length, GFP_KERNEL);
+       param = kmalloc(p->length, GFP_KERNEL);
        if (param == NULL)
                return -ENOMEM;
 
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
index 233d906c08f0..5eb81638e846 100644
--- a/drivers/net/wireless/wavelan_cs.c
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -603,7 +603,7 @@ static wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char se
   if(lp->wavepoint_table.num_wavepoints==MAX_WAVEPOINTS)
     return NULL;
   
-  new_wavepoint=(wavepoint_history *) kmalloc(sizeof(wavepoint_history),GFP_ATOMIC);
+  new_wavepoint = kmalloc(sizeof(wavepoint_history),GFP_ATOMIC);
   if(new_wavepoint==NULL)
     return NULL;
   
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
index 77e11ddad836..78ea72fb8f0c 100644
--- a/drivers/net/wireless/zd1211rw/zd_chip.c
+++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -101,7 +101,7 @@ int zd_ioread32v_locked(struct zd_chip *chip, u32 *values, const zd_addr_t *addr
 
         /* Allocate a single memory block for values and addresses. */
         count16 = 2*count;
-        a16 = (zd_addr_t *)kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)),
+        a16 = kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)),
                                    GFP_NOFS);
         if (!a16) {
                 dev_dbg_f(zd_chip_dev(chip),
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 12bab64a62a1..6fb3f7979f21 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -874,7 +874,7 @@ void *iosapic_register(unsigned long hpa)
                 return NULL;
         }
 
-        isi = (struct iosapic_info *)kzalloc(sizeof(struct iosapic_info), GFP_KERNEL);
+        isi = kzalloc(sizeof(struct iosapic_info), GFP_KERNEL);
         if (!isi) {
                 BUG();
                 return NULL;
diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
index 298a6cfd8406..ae5e974c45a7 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.c
+++ b/drivers/pci/hotplug/cpqphp_nvram.c
@@ -520,7 +520,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl)
                         return 2;
 
                 while (nummem--) {
-                        mem_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+                        mem_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
 
                         if (!mem_node)
                                 break;
@@ -548,7 +548,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl)
                 }
 
                 while (numpmem--) {
-                        p_mem_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+                        p_mem_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
 
                         if (!p_mem_node)
                                 break;
@@ -576,7 +576,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl)
                 }
 
                 while (numio--) {
-                        io_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+                        io_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
 
                         if (!io_node)
                                 break;
@@ -604,7 +604,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl)
                 }
 
                 while (numbus--) {
-                        bus_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+                        bus_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
 
                         if (!bus_node)
                                 break;
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 6d3f580f2666..25d3aadfddbf 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1320,7 +1320,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev)
         DBG_ENTER_ROUTINE
         
         spin_lock_init(&list_lock);     
-        php_ctlr = (struct php_ctlr_state_s *) kmalloc(sizeof(struct php_ctlr_state_s), GFP_KERNEL);
+        php_ctlr = kmalloc(sizeof(struct php_ctlr_state_s), GFP_KERNEL);
 
         if (!php_ctlr) {        /* allocate controller state data */
                 err("%s: HPC controller memory allocation error!\n", __FUNCTION__);
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 55866b6b26fa..6f5fabbd14e5 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -148,7 +148,7 @@ static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev)
 {
         struct aer_rpc *rpc;
 
-        if (!(rpc = (struct aer_rpc *)kmalloc(sizeof(struct aer_rpc),
+        if (!(rpc = kmalloc(sizeof(struct aer_rpc),
                 GFP_KERNEL)))
                 return NULL;
 
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index b7fdb4d21a96..95738dbd5d45 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -109,7 +109,7 @@ static int pnp_dock_event(int dock, struct pnp_docking_station_info *info)
         if (!current->fs->root) {
                 return -EAGAIN;
         }
-        if (!(envp = (char **) kcalloc (20, sizeof (char *), GFP_KERNEL))) {
+        if (!(envp = kcalloc(20, sizeof (char *), GFP_KERNEL))) {
                 return -ENOMEM;
         }
         if (!(buf = kzalloc(256, GFP_KERNEL))) {
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index c9321b920e90..25b5d7a66417 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -688,7 +688,7 @@ raw3215_probe (struct ccw_device *cdev)
         raw->cdev = cdev;
         raw->inbuf = (char *) raw + sizeof(struct raw3215_info);
         memset(raw, 0, sizeof(struct raw3215_info));
-        raw->buffer = (char *) kmalloc(RAW3215_BUFFER_SIZE,
+        raw->buffer = kmalloc(RAW3215_BUFFER_SIZE,
                                        GFP_KERNEL|GFP_DMA);
         if (raw->buffer == NULL) {
                 spin_lock(&raw3215_device_lock);
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index e3491a5f5219..3e86fd1756e5 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -377,7 +377,7 @@ do_kdsk_ioctl(struct kbd_data *kbd, struct kbentry __user *user_kbe,
                 if (!(key_map = kbd->key_maps[tmp.kb_table])) {
                         int j;
 
-                        key_map = (ushort *) kmalloc(sizeof(plain_map),
+                        key_map = kmalloc(sizeof(plain_map),
                                                      GFP_KERNEL);
                         if (!key_map)
                                 return -ENOMEM;
diff --git a/drivers/s390/char/sclp_cpi.c b/drivers/s390/char/sclp_cpi.c
index 732dfbdb85c4..f7c10d954ec6 100644
--- a/drivers/s390/char/sclp_cpi.c
+++ b/drivers/s390/char/sclp_cpi.c
@@ -127,7 +127,7 @@ cpi_prepare_req(void)
         struct cpi_sccb *sccb;
         struct cpi_evbuf *evb;
 
-        req = (struct sclp_req *) kmalloc(sizeof(struct sclp_req), GFP_KERNEL);
+        req = kmalloc(sizeof(struct sclp_req), GFP_KERNEL);
         if (req == NULL)
                 return ERR_PTR(-ENOMEM);
         sccb = (struct cpi_sccb *) __get_free_page(GFP_KERNEL | GFP_DMA);
diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c
index a62b00083d0c..5bb13a9d0898 100644
--- a/drivers/s390/crypto/zcrypt_cex2a.c
+++ b/drivers/s390/crypto/zcrypt_cex2a.c
@@ -295,7 +295,7 @@ static long zcrypt_cex2a_modexpo(struct zcrypt_device *zdev,
         struct completion work;
         int rc;
 
-        ap_msg.message = (void *) kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
+        ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
         if (!ap_msg.message)
                 return -ENOMEM;
         ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
@@ -337,7 +337,7 @@ static long zcrypt_cex2a_modexpo_crt(struct zcrypt_device *zdev,
         struct completion work;
         int rc;
 
-        ap_msg.message = (void *) kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
+        ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
         if (!ap_msg.message)
                 return -ENOMEM;
         ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c
index b6a4ecdc8025..32e37014345c 100644
--- a/drivers/s390/crypto/zcrypt_pcica.c
+++ b/drivers/s390/crypto/zcrypt_pcica.c
@@ -279,7 +279,7 @@ static long zcrypt_pcica_modexpo(struct zcrypt_device *zdev,
         struct completion work;
         int rc;
 
-        ap_msg.message = (void *) kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
+        ap_msg.message = kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
         if (!ap_msg.message)
                 return -ENOMEM;
         ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
@@ -321,7 +321,7 @@ static long zcrypt_pcica_modexpo_crt(struct zcrypt_device *zdev,
         struct completion work;
         int rc;
 
-        ap_msg.message = (void *) kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
+        ap_msg.message = kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
         if (!ap_msg.message)
                 return -ENOMEM;
         ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index 2da8b9381407..b7153c1e15cd 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -717,7 +717,7 @@ long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev, struct ica_xcRB *xcRB)
         };
         int rc;
 
-        ap_msg.message = (void *) kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
+        ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
         if (!ap_msg.message)
                 return -ENOMEM;
         ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c
index 3257c22dd79c..03cc263fe0da 100644
--- a/drivers/s390/net/ctcmain.c
+++ b/drivers/s390/net/ctcmain.c
@@ -1646,7 +1646,7 @@ add_channel(struct ccw_device *cdev, enum channel_types type)
                 return -1;
         }
         memset(ch, 0, sizeof (struct channel));
-        if ((ch->ccw = (struct ccw1 *) kmalloc(8*sizeof(struct ccw1),
+        if ((ch->ccw = kmalloc(8*sizeof(struct ccw1),
                                                GFP_KERNEL | GFP_DMA)) == NULL) {
                 kfree(ch);
                 ctc_pr_warn("ctc: Out of memory in add_channel\n");
@@ -1693,7 +1693,7 @@ add_channel(struct ccw_device *cdev, enum channel_types type)
                 return -1;
         }
         fsm_newstate(ch->fsm, CH_STATE_IDLE);
-        if ((ch->irb = (struct irb *) kmalloc(sizeof (struct irb),
+        if ((ch->irb = kmalloc(sizeof (struct irb),
                                               GFP_KERNEL)) == NULL) {
                 ctc_pr_warn("ctc: Out of memory in add_channel\n");
                 kfree_fsm(ch->fsm);
@@ -2535,7 +2535,7 @@ ctc_print_statistics(struct ctc_priv *priv)
         DBF_TEXT(trace, 4, __FUNCTION__);
         if (!priv)
                 return;
-        sbuf = (char *)kmalloc(2048, GFP_KERNEL);
+        sbuf = kmalloc(2048, GFP_KERNEL);
         if (sbuf == NULL)
                 return;
         p = sbuf;
diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c
index 1476ce2b437c..229aeb5fc399 100644
--- a/drivers/s390/net/iucv.c
+++ b/drivers/s390/net/iucv.c
@@ -772,7 +772,7 @@ iucv_register_program (__u8 pgmname[16],
         }
 
         /* Allocate handler entry */
-        new_handler = (handler *)kmalloc(sizeof(handler), GFP_ATOMIC);
+        new_handler = kmalloc(sizeof(handler), GFP_ATOMIC);
         if (new_handler == NULL) {
                 printk(KERN_WARNING "%s: storage allocation for new handler "
                        "failed.\n", __FUNCTION__);
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 5d39b2df0cc4..85093b71f9fa 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -237,7 +237,7 @@ zfcp_device_setup(char *devstr)
                 return 0;
 
         len = strlen(devstr) + 1;
-        str = (char *) kmalloc(len, GFP_KERNEL);
+        str = kmalloc(len, GFP_KERNEL);
         if (!str)
                 goto err_out;
         memcpy(str, devstr, len);
diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index 2722af5d3404..386e7de0b7e3 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/drivers/sbus/char/vfc_dev.c
@@ -659,7 +659,7 @@ static int vfc_probe(void)
         if (!cards)
                 return -ENODEV;
 
-        vfc_dev_lst = (struct vfc_dev **)kmalloc(sizeof(struct vfc_dev *) *
+        vfc_dev_lst = kmalloc(sizeof(struct vfc_dev *) *
                                                  (cards+1),
                                                  GFP_KERNEL);
         if (vfc_dev_lst == NULL)
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index ac108f9e2674..426cd6f49f5d 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -288,7 +288,7 @@ int aac_get_containers(struct aac_dev *dev)
 
         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
-        fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
+        fsa_dev_ptr = kmalloc(
           sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
         if (!fsa_dev_ptr) {
                 aac_fib_free(fibptr);
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index d5cf8b91a0e7..6d305b2f854e 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -386,7 +386,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
          *      Ok now init the communication subsystem
          */
 
-        dev->queues = (struct aac_queue_block *) kmalloc(sizeof(struct aac_queue_block), GFP_KERNEL);
+        dev->queues = kmalloc(sizeof(struct aac_queue_block), GFP_KERNEL);
         if (dev->queues == NULL) {
                 printk(KERN_ERR "Error could not allocate comm region.\n");
                 return NULL;
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index d7a61a6bdaae..1d239f6c0103 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -699,7 +699,7 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 #endif
                 int i;
                 ccb[mbo].op = 2;        /* SCSI Initiator Command  w/scatter-gather */
-                SCpnt->host_scribble = (unsigned char *) kmalloc(512, GFP_KERNEL | GFP_DMA);
+                SCpnt->host_scribble = kmalloc(512, GFP_KERNEL | GFP_DMA);
                 sgpnt = (struct scatterlist *) SCpnt->request_buffer;
                 cptr = (struct chain *) SCpnt->host_scribble;
                 if (cptr == NULL) {
diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c
index 46eed10b25d9..7d1fec620948 100644
--- a/drivers/scsi/aic7xxx_old.c
+++ b/drivers/scsi/aic7xxx_old.c
@@ -2565,7 +2565,7 @@ aic7xxx_allocate_scb(struct aic7xxx_host *p)
       }
     }
     scb_count = min( (i-1), p->scb_data->maxscbs - p->scb_data->numscbs);
-    scb_ap = (struct aic7xxx_scb *)kmalloc(sizeof (struct aic7xxx_scb) * scb_count
+    scb_ap = kmalloc(sizeof (struct aic7xxx_scb) * scb_count
                                            + sizeof(struct aic7xxx_scb_dma), GFP_ATOMIC);
     if (scb_ap == NULL)
       return(0);
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index e95b367d09ed..a965ed3548d5 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -4319,7 +4319,7 @@ static int __devinit adapter_sg_tables_alloc(struct AdapterCtlBlk *acb)
 
         dprintkdbg(DBG_1, "Allocate %i pages for SG tables\n", pages);
         while (pages--) {
-                ptr = (struct SGentry *)kmalloc(PAGE_SIZE, GFP_KERNEL);
+                ptr = kmalloc(PAGE_SIZE, GFP_KERNEL);
                 if (!ptr) {
                         adapter_sg_tables_free(acb);
                         return 1;
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 60b1b434eba7..365db537a28d 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -297,7 +297,7 @@ static void adpt_inquiry(adpt_hba* pHba)
         s32 rcode;
 
         memset(msg, 0, sizeof(msg));
-        buf = (u8*)kmalloc(80,GFP_KERNEL|ADDR32);
+        buf = kmalloc(80,GFP_KERNEL|ADDR32);
         if(!buf){
                 printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name);
                 return;
@@ -1311,7 +1311,7 @@ static s32 adpt_i2o_reset_hba(adpt_hba* pHba)
                 schedule_timeout_uninterruptible(1);
         } while (m == EMPTY_QUEUE);
 
-        status = (u8*)kmalloc(4, GFP_KERNEL|ADDR32);
+        status = kmalloc(4, GFP_KERNEL|ADDR32);
         if(status == NULL) {
                 adpt_send_nop(pHba, m);
                 printk(KERN_ERR"IOP reset failed - no free memory.\n");
@@ -1444,7 +1444,7 @@ static int adpt_i2o_parse_lct(adpt_hba* pHba)
                         }
                         continue;
                 }
-                d = (struct i2o_device *)kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
+                d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
                 if(d==NULL)
                 {
                         printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name);
@@ -2425,7 +2425,7 @@ static s32 adpt_i2o_reparse_lct(adpt_hba* pHba)
                                 pDev = pDev->next_lun;
                         }
                         if(!pDev ) { // Something new add it
-                                d = (struct i2o_device *)kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
+                                d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
                                 if(d==NULL)
                                 {
                                         printk(KERN_CRIT "Out of memory for I2O device data.\n");
@@ -2728,7 +2728,7 @@ static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
 
         kfree(pHba->reply_pool);
 
-        pHba->reply_pool = (u32*)kmalloc(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, GFP_KERNEL|ADDR32);
+        pHba->reply_pool = kmalloc(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, GFP_KERNEL|ADDR32);
         if(!pHba->reply_pool){
                 printk(KERN_ERR"%s: Could not allocate reply pool\n",pHba->name);
                 return -1;
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index f160357e37a6..d561663fb4e4 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -2828,7 +2828,7 @@ static int i91u_detect(struct scsi_host_template * tpnt)
 
         for (; tul_num_scb >= MAX_TARGETS + 3; tul_num_scb--) {
                 i = tul_num_ch * tul_num_scb * sizeof(SCB);
-                if ((tul_scb = (SCB *) kmalloc(i, GFP_ATOMIC | GFP_DMA)) != NULL)
+                if ((tul_scb = kmalloc(i, GFP_ATOMIC | GFP_DMA)) != NULL)
                         break;
         }
         if (tul_scb == NULL) {
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 824fe080d1dc..7d2311067903 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -5777,7 +5777,7 @@ static int osst_probe(struct device *dev)
         dev_num = i;
 
         /* allocate a struct osst_tape for this device */
-        tpnt = (struct osst_tape *)kmalloc(sizeof(struct osst_tape), GFP_ATOMIC);
+        tpnt = kmalloc(sizeof(struct osst_tape), GFP_ATOMIC);
         if (tpnt == NULL) {
                 write_unlock(&os_scsi_tapes_lock);
                 printk(KERN_ERR "osst :E: Can't allocate device descriptor, device not attached.\n");
diff --git a/drivers/scsi/pluto.c b/drivers/scsi/pluto.c
index aa60a5f1fbc3..3b2e1a53e6e2 100644
--- a/drivers/scsi/pluto.c
+++ b/drivers/scsi/pluto.c
@@ -117,7 +117,7 @@ int __init pluto_detect(struct scsi_host_template *tpnt)
 #endif
                         return 0;
         }
-        fcs = (struct ctrl_inquiry *) kmalloc (sizeof (struct ctrl_inquiry) * fcscount, GFP_DMA);
+        fcs = kmalloc(sizeof (struct ctrl_inquiry) * fcscount, GFP_DMA);
         if (!fcs) {
                 printk ("PLUTO: Not enough memory to probe\n");
                 return 0;
diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index d1268cb46837..0578ba42718b 100644
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c
@@ -546,7 +546,7 @@ int sr_is_xa(Scsi_CD *cd)
         if (!xa_test)
                 return 0;
 
-        raw_sector = (unsigned char *) kmalloc(2048, GFP_KERNEL | SR_GFP_DMA(cd));
+        raw_sector = kmalloc(2048, GFP_KERNEL | SR_GFP_DMA(cd));
         if (!raw_sector)
                 return -ENOMEM;
         if (0 == sr_read_sector(cd, cd->ms_offset + 16,
diff --git a/drivers/scsi/sr_vendor.c b/drivers/scsi/sr_vendor.c
index a3e9d0f2eb5b..4eb3da996b36 100644
--- a/drivers/scsi/sr_vendor.c
+++ b/drivers/scsi/sr_vendor.c
@@ -117,7 +117,7 @@ int sr_set_blocklength(Scsi_CD *cd, int blocklength)
                 density = (blocklength > 2048) ? 0x81 : 0x83;
 #endif
 
-        buffer = (unsigned char *) kmalloc(512, GFP_KERNEL | GFP_DMA);
+        buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
         if (!buffer)
                 return -ENOMEM;
 
@@ -164,7 +164,7 @@ int sr_cd_check(struct cdrom_device_info *cdi)
         if (cd->cdi.mask & CDC_MULTI_SESSION)
                 return 0;
 
-        buffer = (unsigned char *) kmalloc(512, GFP_KERNEL | GFP_DMA);
+        buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
         if (!buffer)
                 return -ENOMEM;
 
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 5516c59ed5ec..2d12bf9f19d6 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -2195,7 +2195,7 @@ static struct gs_buf *gs_buf_alloc(unsigned int size, gfp_t kmalloc_flags)
         if (size == 0)
                 return NULL;
 
-        gb = (struct gs_buf *)kmalloc(sizeof(struct gs_buf), kmalloc_flags);
+        gb = kmalloc(sizeof(struct gs_buf), kmalloc_flags);
         if (gb == NULL)
                 return NULL;
 
diff --git a/drivers/usb/host/hc_crisv10.c b/drivers/usb/host/hc_crisv10.c
index 9325e46a68c0..282d82efc0b0 100644
--- a/drivers/usb/host/hc_crisv10.c
+++ b/drivers/usb/host/hc_crisv10.c
@@ -365,7 +365,7 @@ static inline struct urb *urb_list_first(int epid)
 /* Adds an urb_entry last in the list for this epid. */
 static inline void urb_list_add(struct urb *urb, int epid)
 {
-        urb_entry_t *urb_entry = (urb_entry_t *)kmalloc(sizeof(urb_entry_t), KMALLOC_FLAG);
+        urb_entry_t *urb_entry = kmalloc(sizeof(urb_entry_t), KMALLOC_FLAG);
         assert(urb_entry);
 
         urb_entry->urb = urb;
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index c703f73e1655..6c7f3efb1d40 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -766,7 +766,7 @@ static int auerbuf_setup (pauerbufctl_t bcp, unsigned int numElements, unsigned
                 bep->bufp = kmalloc (bufsize, GFP_KERNEL);
                 if (!bep->bufp)
                         goto bl_fail;
-                bep->dr = (struct usb_ctrlrequest *) kmalloc (sizeof (struct usb_ctrlrequest), GFP_KERNEL);
+                bep->dr = kmalloc(sizeof (struct usb_ctrlrequest), GFP_KERNEL);
                 if (!bep->dr)
                         goto bl_fail;
                 bep->urbp = usb_alloc_urb (0, GFP_KERNEL);
@@ -1969,7 +1969,7 @@ static int auerswald_probe (struct usb_interface *intf,
         info("device is a %s", cp->dev_desc);
 
         /* get the maximum allowed control transfer length */
-        pbuf = (__le16 *) kmalloc (2, GFP_KERNEL);    /* use an allocated buffer because of urb target */
+        pbuf = kmalloc(2, GFP_KERNEL);    /* use an allocated buffer because of urb target */
         if (!pbuf) {
                 err( "out of memory");
                 goto pfail;
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index a1fdb85b8c0a..45cdf9bc43b2 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1493,7 +1493,7 @@ static struct cypress_buf *cypress_buf_alloc(unsigned int size)
         if (size == 0)
                 return NULL;
 
-        cb = (struct cypress_buf *)kmalloc(sizeof(struct cypress_buf), GFP_KERNEL);
+        cb = kmalloc(sizeof(struct cypress_buf), GFP_KERNEL);
         if (cb == NULL)
                 return NULL;
 
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 9d9ea874639c..efd9ce3f931f 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1681,7 +1681,7 @@ dbg( "digi_startup: TOP" );
         for( i=0; i<serial->type->num_ports+1; i++ ) {
 
                 /* allocate port private structure */
-                priv = (struct digi_port *)kmalloc( sizeof(struct digi_port),
+                priv = kmalloc( sizeof(struct digi_port),
                         GFP_KERNEL );
                 if( priv == (struct digi_port *)0 ) {
                         while( --i >= 0 )
@@ -1714,7 +1714,7 @@ dbg( "digi_startup: TOP" );
         }
 
         /* allocate serial private structure */
-        serial_priv = (struct digi_serial *)kmalloc( sizeof(struct digi_serial),
+        serial_priv = kmalloc( sizeof(struct digi_serial),
                 GFP_KERNEL );
         if( serial_priv == (struct digi_serial *)0 ) {
                 for( i=0; i<serial->type->num_ports+1; i++ )
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 2da2684e0809..980285c0233a 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2811,7 +2811,7 @@ static struct edge_buf *edge_buf_alloc(unsigned int size)
         if (size == 0)
                 return NULL;
 
-        eb = (struct edge_buf *)kmalloc(sizeof(struct edge_buf), GFP_KERNEL);
+        eb = kmalloc(sizeof(struct edge_buf), GFP_KERNEL);
         if (eb == NULL)
                 return NULL;
 
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index d72cf8bc7f76..42f757a5b876 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -595,7 +595,7 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp)
 
         bytes_in = 0;
         bytes_out = 0;
-        priv = (struct ipaq_private *)kmalloc(sizeof(struct ipaq_private), GFP_KERNEL);
+        priv = kmalloc(sizeof(struct ipaq_private), GFP_KERNEL);
         if (priv == NULL) {
                 err("%s - Out of memory", __FUNCTION__);
                 return -ENOMEM;
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index e284d6c0fd35..62bea0c923bd 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -269,7 +269,7 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp)
         }
 
         // allocate memory for write_urb transfer buffer
-        port->write_urb->transfer_buffer = (unsigned char *) kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
+        port->write_urb->transfer_buffer = kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
         if (! port->write_urb->transfer_buffer) {
                 kfree(transfer_buffer);
                 usb_free_urb(port->write_urb);
@@ -696,7 +696,7 @@ static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
                 return 0;
 
         case TCFLSH:   // 0x540B
-                transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
+                transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
                 if (! transfer_buffer) {
                         return -ENOBUFS;
                 }
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index d124d780e42e..5dc2ac9afa90 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -159,7 +159,7 @@ static struct pl2303_buf *pl2303_buf_alloc(unsigned int size)
         if (size == 0)
                 return NULL;
 
-        pb = (struct pl2303_buf *)kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL);
+        pb = kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL);
         if (pb == NULL)
                 return NULL;
 
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index f42eb9ea6405..83189005c6fb 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1710,7 +1710,7 @@ static struct circ_buf *ti_buf_alloc(void)
 {
         struct circ_buf *cb;
 
-        cb = (struct circ_buf *)kmalloc(sizeof(struct circ_buf), GFP_KERNEL);
+        cb = kmalloc(sizeof(struct circ_buf), GFP_KERNEL);
         if (cb == NULL)
                 return NULL;
 
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index dc45e58e2b8c..5483d8564c1b 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -416,7 +416,7 @@ static int whiteheat_attach (struct usb_serial *serial)
         for (i = 0; i < serial->num_ports; i++) {
                 port = serial->port[i];
 
-                info = (struct whiteheat_private *)kmalloc(sizeof(struct whiteheat_private), GFP_KERNEL);
+                info = kmalloc(sizeof(struct whiteheat_private), GFP_KERNEL);
                 if (info == NULL) {
                         err("%s: Out of memory for port structures\n", serial->type->description);
                         goto no_private;
@@ -487,7 +487,7 @@ static int whiteheat_attach (struct usb_serial *serial)
                 usb_set_serial_port_data(port, info);
         }
 
-        command_info = (struct whiteheat_command_private *)kmalloc(sizeof(struct whiteheat_command_private), GFP_KERNEL);
+        command_info = kmalloc(sizeof(struct whiteheat_command_private), GFP_KERNEL);
         if (command_info == NULL) {
                 err("%s: Out of memory for port structures\n", serial->type->description);
                 goto no_command_private;
diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c
index fb8bacaae27c..e3528eca29a5 100644
--- a/drivers/usb/storage/sddr09.c
+++ b/drivers/usb/storage/sddr09.c
@@ -646,7 +646,7 @@ sddr09_read_sg_test_only(struct us_data *us) {
                 return result;
         }
 
-        buf = (unsigned char *) kmalloc(bulklen, GFP_NOIO);
+        buf = kmalloc(bulklen, GFP_NOIO);
         if (!buf)
                 return -ENOMEM;
 
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 6761b68c35e9..6c9dc2e69c82 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -447,7 +447,7 @@ static int clcdfb_probe(struct amba_device *dev, void *id)
                 goto out;
         }
 
-        fb = (struct clcd_fb *) kmalloc(sizeof(struct clcd_fb), GFP_KERNEL);
+        fb = kmalloc(sizeof(struct clcd_fb), GFP_KERNEL);
         if (!fb) {
                 printk(KERN_INFO "CLCD: could not allocate new clcd_fb struct\n");
                 ret = -ENOMEM;
diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c
index 797b42305b0f..fe28848e7b52 100644
--- a/drivers/video/matrox/i2c-matroxfb.c
+++ b/drivers/video/matrox/i2c-matroxfb.c
@@ -146,7 +146,7 @@ static void* i2c_matroxfb_probe(struct matrox_fb_info* minfo) {
         unsigned long flags;
         struct matroxfb_dh_maven_info* m2info;
 
-        m2info = (struct matroxfb_dh_maven_info*)kmalloc(sizeof(*m2info), GFP_KERNEL);
+        m2info = kmalloc(sizeof(*m2info), GFP_KERNEL);
         if (!m2info)
                 return NULL;
 
diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c
index e9b4115fcad0..cb2aa402ddfd 100644
--- a/drivers/video/matrox/matroxfb_base.c
+++ b/drivers/video/matrox/matroxfb_base.c
@@ -2028,7 +2028,7 @@ static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dumm
         }
 
 #ifdef CONFIG_FB_MATROX_MULTIHEAD
-        minfo = (struct matrox_fb_info*)kmalloc(sizeof(*minfo), GFP_KERNEL);
+        minfo = kmalloc(sizeof(*minfo), GFP_KERNEL);
         if (!minfo)
                 return -1;
 #else
diff --git a/drivers/video/matrox/matroxfb_crtc2.c b/drivers/video/matrox/matroxfb_crtc2.c
index 27eb4bb4f89f..2c9801090fae 100644
--- a/drivers/video/matrox/matroxfb_crtc2.c
+++ b/drivers/video/matrox/matroxfb_crtc2.c
@@ -694,7 +694,7 @@ static void* matroxfb_crtc2_probe(struct matrox_fb_info* minfo) {
         /* hardware is CRTC2 incapable... */
         if (!ACCESS_FBINFO(devflags.crtc2))
                 return NULL;
-        m2info = (struct matroxfb_dh_fb_info*)kmalloc(sizeof(*m2info), GFP_KERNEL);
+        m2info = kmalloc(sizeof(*m2info), GFP_KERNEL);
         if (!m2info) {
                 printk(KERN_ERR "matroxfb_crtc2: Not enough memory for CRTC2 control structs\n");
                 return NULL;