Staging: Drop memory allocation cast

Drop cast on the result of kmalloc and similar functions.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
@@

- (T *)
  (\(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
   kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...))
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

33 files changed, 52 insertions, 59 deletions

diff --git a/drivers/staging/comedi/drivers/unioxx5.c b/drivers/staging/comedi/drivers/unioxx5.c
index be1d83df0de..16d4c9f6916 100644
--- a/drivers/staging/comedi/drivers/unioxx5.c
+++ b/drivers/staging/comedi/drivers/unioxx5.c
@@ -285,7 +285,7 @@ static int __unioxx5_subdev_init(struct comedi_subdevice *subdev,
                 return -EIO;
         }
 
-        usp = (struct unioxx5_subd_priv *)kzalloc(sizeof(*usp), GFP_KERNEL);
+        usp = kzalloc(sizeof(*usp), GFP_KERNEL);
 
         if (usp == NULL) {
                 printk(KERN_ERR "comedi%d: erorr! --> out of memory!\n", minor);
diff --git a/drivers/staging/crystalhd/crystalhd_misc.c b/drivers/staging/crystalhd/crystalhd_misc.c
index d1346672531..548dc09f249 100644
--- a/drivers/staging/crystalhd/crystalhd_misc.c
+++ b/drivers/staging/crystalhd/crystalhd_misc.c
@@ -887,7 +887,7 @@ int crystalhd_create_dio_pool(struct crystalhd_adp *adp, uint32_t max_pages)
                BC_LINK_SG_POOL_SZ, max_pages, asz, adp->fill_byte_pool);
 
         for (i = 0; i < BC_LINK_SG_POOL_SZ; i++) {
-                temp = (uint8_t *)kzalloc(asz, GFP_KERNEL);
+                temp = kzalloc(asz, GFP_KERNEL);
                 if ((temp) == NULL) {
                         BCMLOG_ERR("Failed to alloc %d mem\n", asz);
                         return -ENOMEM;
diff --git a/drivers/staging/cx25821/cx25821-audio-upstream.c b/drivers/staging/cx25821/cx25821-audio-upstream.c
index 11c56bdb0ce..4c7d21e3d54 100644
--- a/drivers/staging/cx25821/cx25821-audio-upstream.c
+++ b/drivers/staging/cx25821/cx25821-audio-upstream.c
@@ -751,8 +751,7 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
 
         if (dev->input_audiofilename) {
                 str_length = strlen(dev->input_audiofilename);
-                dev->_audiofilename =
-                    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+                dev->_audiofilename = kmalloc(str_length + 1, GFP_KERNEL);
 
                 if (!dev->_audiofilename)
                         goto error;
@@ -766,8 +765,7 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
                 }
         } else {
                 str_length = strlen(_defaultAudioName);
-                dev->_audiofilename =
-                    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+                dev->_audiofilename = kmalloc(str_length + 1, GFP_KERNEL);
 
                 if (!dev->_audiofilename)
                         goto error;
diff --git a/drivers/staging/cx25821/cx25821-video-upstream-ch2.c b/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
index cc51618cffa..343df6619fe 100644
--- a/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
+++ b/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
@@ -769,8 +769,7 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
 
         if (dev->input_filename_ch2) {
                 str_length = strlen(dev->input_filename_ch2);
-                dev->_filename_ch2 =
-                    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+                dev->_filename_ch2 = kmalloc(str_length + 1, GFP_KERNEL);
 
                 if (!dev->_filename_ch2)
                         goto error;
@@ -779,8 +778,7 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
                        str_length + 1);
         } else {
                 str_length = strlen(dev->_defaultname_ch2);
-                dev->_filename_ch2 =
-                    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+                dev->_filename_ch2 = kmalloc(str_length + 1, GFP_KERNEL);
 
                 if (!dev->_filename_ch2)
                         goto error;
diff --git a/drivers/staging/cx25821/cx25821-video-upstream.c b/drivers/staging/cx25821/cx25821-video-upstream.c
index 6d48a1e26d1..fdd94cf6d0b 100644
--- a/drivers/staging/cx25821/cx25821-video-upstream.c
+++ b/drivers/staging/cx25821/cx25821-video-upstream.c
@@ -825,7 +825,7 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
 
         if (dev->input_filename) {
                 str_length = strlen(dev->input_filename);
-                dev->_filename = (char *)kmalloc(str_length + 1, GFP_KERNEL);
+                dev->_filename = kmalloc(str_length + 1, GFP_KERNEL);
 
                 if (!dev->_filename)
                         goto error;
@@ -833,7 +833,7 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
                 memcpy(dev->_filename, dev->input_filename, str_length + 1);
         } else {
                 str_length = strlen(dev->_defaultname);
-                dev->_filename = (char *)kmalloc(str_length + 1, GFP_KERNEL);
+                dev->_filename = kmalloc(str_length + 1, GFP_KERNEL);
 
                 if (!dev->_filename)
                         goto error;
diff --git a/drivers/staging/et131x/et1310_rx.c b/drivers/staging/et131x/et1310_rx.c
index 8f5dcebda76..8e04bdd8f6b 100644
--- a/drivers/staging/et131x/et1310_rx.c
+++ b/drivers/staging/et131x/et1310_rx.c
@@ -547,7 +547,7 @@ int et131x_init_recv(struct et131x_adapter *adapter)
 
         /* Setup each RFD */
         for (rfdct = 0; rfdct < rx_ring->NumRfd; rfdct++) {
-                rfd = (MP_RFD *) kmem_cache_alloc(rx_ring->RecvLookaside,
+                rfd = kmem_cache_alloc(rx_ring->RecvLookaside,
                                                      GFP_ATOMIC | GFP_DMA);
 
                 if (!rfd) {
diff --git a/drivers/staging/et131x/et1310_tx.c b/drivers/staging/et131x/et1310_tx.c
index b6ff20f47de..0f3473d758e 100644
--- a/drivers/staging/et131x/et1310_tx.c
+++ b/drivers/staging/et131x/et1310_tx.c
@@ -112,7 +112,7 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
         struct tx_ring *tx_ring = &adapter->tx_ring;
 
         /* Allocate memory for the TCB's (Transmit Control Block) */
-        adapter->tx_ring.tcb_ring = (struct tcb *)
+        adapter->tx_ring.tcb_ring =
                 kcalloc(NUM_TCB, sizeof(struct tcb), GFP_ATOMIC | GFP_DMA);
         if (!adapter->tx_ring.tcb_ring) {
                 dev_err(&adapter->pdev->dev, "Cannot alloc memory for TCBs\n");
diff --git a/drivers/staging/rt2860/common/cmm_data.c b/drivers/staging/rt2860/common/cmm_data.c
index 65b00e685eb..93a53479d76 100644
--- a/drivers/staging/rt2860/common/cmm_data.c
+++ b/drivers/staging/rt2860/common/cmm_data.c
@@ -1424,7 +1424,7 @@ u32 deaggregate_AMSDU_announce(struct rt_rtmp_adapter *pAd,
                 if ((Header802_3[12] == 0x88) && (Header802_3[13] == 0x8E)) {
                         /* avoid local heap overflow, use dyanamic allocation */
                         struct rt_mlme_queue_elem *Elem =
-                            (struct rt_mlme_queue_elem *)kmalloc(sizeof(struct rt_mlme_queue_elem),
+                            kmalloc(sizeof(struct rt_mlme_queue_elem),
                                                         MEM_ALLOC_FLAG);
                         if (Elem != NULL) {
                                 memmove(Elem->Msg +
diff --git a/drivers/staging/rt2860/common/cmm_mac_pci.c b/drivers/staging/rt2860/common/cmm_mac_pci.c
index 560ebd398e1..e26ba494287 100644
--- a/drivers/staging/rt2860/common/cmm_mac_pci.c
+++ b/drivers/staging/rt2860/common/cmm_mac_pci.c
@@ -1558,7 +1558,7 @@ void RT28xxPciMlmeRadioOFF(struct rt_rtmp_adapter *pAd)
                 if (INFRA_ON(pAd) || ADHOC_ON(pAd)) {
                         struct rt_mlme_disassoc_req DisReq;
                         struct rt_mlme_queue_elem *pMsgElem =
-                            (struct rt_mlme_queue_elem *)kmalloc(sizeof(struct rt_mlme_queue_elem),
+                            kmalloc(sizeof(struct rt_mlme_queue_elem),
                                                         MEM_ALLOC_FLAG);
 
                         if (pMsgElem) {
diff --git a/drivers/staging/rt2860/common/cmm_mac_usb.c b/drivers/staging/rt2860/common/cmm_mac_usb.c
index 9dd6959cd5a..8aec70fc20d 100644
--- a/drivers/staging/rt2860/common/cmm_mac_usb.c
+++ b/drivers/staging/rt2860/common/cmm_mac_usb.c
@@ -1087,7 +1087,7 @@ void RT28xxUsbMlmeRadioOFF(struct rt_rtmp_adapter *pAd)
                 if (INFRA_ON(pAd) || ADHOC_ON(pAd)) {
                         struct rt_mlme_disassoc_req DisReq;
                         struct rt_mlme_queue_elem *pMsgElem =
-                            (struct rt_mlme_queue_elem *)kmalloc(sizeof(struct rt_mlme_queue_elem),
+                            kmalloc(sizeof(struct rt_mlme_queue_elem),
                                                         MEM_ALLOC_FLAG);
 
                         if (pMsgElem) {
diff --git a/drivers/staging/rt2860/rt_linux.c b/drivers/staging/rt2860/rt_linux.c
index 27b78102f4b..0029b2d73b7 100644
--- a/drivers/staging/rt2860/rt_linux.c
+++ b/drivers/staging/rt2860/rt_linux.c
@@ -154,7 +154,7 @@ void RTMP_GetCurrentSystemTime(LARGE_INTEGER *time)
 /* pAd MUST allow to be NULL */
 int os_alloc_mem(struct rt_rtmp_adapter *pAd, u8 ** mem, unsigned long size)
 {
-        *mem = (u8 *)kmalloc(size, GFP_ATOMIC);
+        *mem = kmalloc(size, GFP_ATOMIC);
         if (*mem)
                 return NDIS_STATUS_SUCCESS;
         else
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index e099a5fa049..b7426fea549 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -1435,7 +1435,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
                 if(*(t++) == MFIE_TYPE_CHALLENGE){
                         *chlen = *(t++);
-                        *challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+                        *challenge = kmalloc(*chlen, GFP_ATOMIC);
                         memcpy(*challenge, t, *chlen);
                 }
         }
@@ -2861,8 +2861,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
                 ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-                new_crypt = (struct ieee80211_crypt_data *)
-                        kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+                new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
                 if (new_crypt == NULL) {
                         ret = -ENOMEM;
                         goto done;
@@ -2953,7 +2952,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
                 goto out;
         }
 
-        param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+        param = kmalloc(p->length, GFP_KERNEL);
         if (param == NULL){
                 ret = -ENOMEM;
                 goto out;
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
index f43a7db5c78..c7aa1c63cb1 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
@@ -170,7 +170,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
         ieee80211_softmac_init(ieee);
 
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
-        ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
+        ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
 #else
         ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kmalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
         memset(ieee->pHTInfo,0,sizeof(RT_HIGH_THROUGHPUT));
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
index ce265ae5fe1..da10067485e 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
@@ -1397,7 +1397,7 @@ int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
         /* skb: hdr + (possible reassembled) full plaintext payload */
         payload = skb->data + hdrlen;
         //ethertype = (payload[6] << 8) | payload[7];
-        rxb = (struct ieee80211_rxb*)kmalloc(sizeof(struct ieee80211_rxb),GFP_ATOMIC);
+        rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
         if(rxb == NULL)
         {
                 IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
index b4beb207391..4f6ce06b606 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
@@ -1800,7 +1800,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
                 if(*(t++) == MFIE_TYPE_CHALLENGE){
                         *chlen = *(t++);
-                        *challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+                        *challenge = kmalloc(*chlen, GFP_ATOMIC);
                         memcpy(*challenge, t, *chlen);
                 }
         }
@@ -3459,8 +3459,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
                 ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-                new_crypt = (struct ieee80211_crypt_data *)
-                        kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+                new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
                 if (new_crypt == NULL) {
                         ret = -ENOMEM;
                         goto done;
@@ -3592,7 +3591,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
                 goto out;
         }
 
-        param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+        param = kmalloc(p->length, GFP_KERNEL);
         if (param == NULL){
                 ret = -ENOMEM;
                 goto out;
diff --git a/drivers/staging/rtl8192e/r8192E_core.c b/drivers/staging/rtl8192e/r8192E_core.c
index 604c691d64b..533be4882bb 100644
--- a/drivers/staging/rtl8192e/r8192E_core.c
+++ b/drivers/staging/rtl8192e/r8192E_core.c
@@ -5040,7 +5040,7 @@ static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
              goto out;
      }
 
-     ipw = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+     ipw = kmalloc(p->length, GFP_KERNEL);
      if (ipw == NULL){
              ret = -ENOMEM;
              goto out;
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
index c024fa60072..73de3baf915 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
@@ -161,7 +161,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 
         ieee80211_softmac_init(ieee);
 
-        ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
+        ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
         if (ieee->pHTInfo == NULL)
         {
                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
index cc80faf6598..1f2bc7ac6f7 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
@@ -1191,7 +1191,7 @@ int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
         /* skb: hdr + (possible reassembled) full plaintext payload */
         payload = skb->data + hdrlen;
         //ethertype = (payload[6] << 8) | payload[7];
-        rxb = (struct ieee80211_rxb*)kmalloc(sizeof(struct ieee80211_rxb),GFP_ATOMIC);
+        rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
         if(rxb == NULL)
         {
                 IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
index 3cf5fdf8a8c..660aee2874a 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
@@ -1557,7 +1557,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
                 if(*(t++) == MFIE_TYPE_CHALLENGE){
                         *chlen = *(t++);
-                        *challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+                        *challenge = kmalloc(*chlen, GFP_ATOMIC);
                         memcpy(*challenge, t, *chlen);
                 }
         }
@@ -3048,8 +3048,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
                 ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-                new_crypt = (struct ieee80211_crypt_data *)
-                        kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+                new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
                 if (new_crypt == NULL) {
                         ret = -ENOMEM;
                         goto done;
@@ -3182,7 +3181,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
                 goto out;
         }
 
-        param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+        param = kmalloc(p->length, GFP_KERNEL);
         if (param == NULL){
                 ret = -ENOMEM;
                 goto out;
diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index d372ff22a0d..70a8087434d 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -5747,7 +5747,7 @@ int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
              goto out;
         }
 
-     ipw = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+     ipw = kmalloc(p->length, GFP_KERNEL);
      if (ipw == NULL){
              ret = -ENOMEM;
              goto out;
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index b752017a4d1..1111002bad9 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@ -161,7 +161,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 
         ieee80211_softmac_init(ieee);
 
-        ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
+        ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
         if (ieee->pHTInfo == NULL)
         {
                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
index 7e9b367594a..192123fbec7 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
@@ -1302,7 +1302,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
         /* skb: hdr + (possible reassembled) full plaintext payload */
         payload = skb->data + hdrlen;
         //ethertype = (payload[6] << 8) | payload[7];
-        rxb = (struct ieee80211_rxb*)kmalloc(sizeof(struct ieee80211_rxb),GFP_ATOMIC);
+        rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
         if(rxb == NULL)
         {
                 IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index e5e583ed119..6c6bf9f6e78 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -1579,7 +1579,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
                 if(*(t++) == MFIE_TYPE_CHALLENGE){
                         *chlen = *(t++);
-                        *challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+                        *challenge = kmalloc(*chlen, GFP_ATOMIC);
                         if (!*challenge)
                                 return -ENOMEM;
                         memcpy(*challenge, t, *chlen);
@@ -3077,8 +3077,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
                 ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-                new_crypt = (struct ieee80211_crypt_data *)
-                        kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+                new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
                 if (new_crypt == NULL) {
                         ret = -ENOMEM;
                         goto done;
@@ -3210,7 +3209,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
                 goto out;
         }
 
-        param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+        param = kmalloc(p->length, GFP_KERNEL);
         if (param == NULL){
                 ret = -ENOMEM;
                 goto out;
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 68ebb025677..cbbc7d32fcf 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -2216,7 +2216,8 @@ short rtl8192_usb_initendpoints(struct net_device *dev)
 {
         struct r8192_priv *priv = ieee80211_priv(dev);
 
-        priv->rx_urb = (struct urb**) kmalloc (sizeof(struct urb*) * (MAX_RX_URB+1), GFP_KERNEL);
+        priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB+1),
+                                GFP_KERNEL);
 
 #ifndef JACKSON_NEW_RX
         for(i=0;i<(MAX_RX_URB+1);i++){
@@ -2250,7 +2251,8 @@ short rtl8192_usb_initendpoints(struct net_device *dev)
 #endif
 
         memset(priv->rx_urb, 0, sizeof(struct urb*) * MAX_RX_URB);
-        priv->pp_rxskb = (struct sk_buff **)kmalloc(sizeof(struct sk_buff *) * MAX_RX_URB, GFP_KERNEL);
+        priv->pp_rxskb = kmalloc(sizeof(struct sk_buff *) * MAX_RX_URB,
+                                 GFP_KERNEL);
         if (priv->pp_rxskb == NULL)
                 goto destroy;
 
@@ -2839,7 +2841,7 @@ static void rtl8192_init_priv_variable(struct net_device* dev)
                 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT:0);
 
         priv->AcmControl = 0;
-        priv->pFirmware = (rt_firmware*)kmalloc(sizeof(rt_firmware), GFP_KERNEL);
+        priv->pFirmware = kmalloc(sizeof(rt_firmware), GFP_KERNEL);
         if (priv->pFirmware)
         memset(priv->pFirmware, 0, sizeof(rt_firmware));
 
@@ -4415,7 +4417,7 @@ int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
              goto out;
         }
 
-     ipw = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+     ipw = kmalloc(p->length, GFP_KERNEL);
      if (ipw == NULL){
              ret = -ENOMEM;
              goto out;
diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c
index b9f986b856e..c35dead64a3 100644
--- a/drivers/staging/vme/bridges/vme_ca91cx42.c
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.c
@@ -941,8 +941,7 @@ int ca91cx42_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src,
         dev = list->parent->parent->parent;
 
         /* XXX descriptor must be aligned on 64-bit boundaries */
-        entry = (struct ca91cx42_dma_entry *)
-                kmalloc(sizeof(struct ca91cx42_dma_entry), GFP_KERNEL);
+        entry = kmalloc(sizeof(struct ca91cx42_dma_entry), GFP_KERNEL);
         if (entry == NULL) {
                 dev_err(dev, "Failed to allocate memory for dma resource "
                         "structure\n");
diff --git a/drivers/staging/vme/bridges/vme_tsi148.c b/drivers/staging/vme/bridges/vme_tsi148.c
index 25987d4069f..7539cce6e2a 100644
--- a/drivers/staging/vme/bridges/vme_tsi148.c
+++ b/drivers/staging/vme/bridges/vme_tsi148.c
@@ -2309,7 +2309,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         if (err_chk) {
                 master_num--;
 
-                tsi148_device->flush_image = (struct vme_master_resource *)
+                tsi148_device->flush_image =
                         kmalloc(sizeof(struct vme_master_resource), GFP_KERNEL);
                 if (tsi148_device->flush_image == NULL) {
                         dev_err(&pdev->dev, "Failed to allocate memory for "
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 7020ed41e0c..f690fc2c35c 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -3025,7 +3025,7 @@ int Config_FileOperation(PSDevice pDevice,BOOL fwrite,unsigned char *Parameter)
           goto error1;
         }
 
-buffer = (UCHAR *)kmalloc(1024, GFP_KERNEL);
+buffer = kmalloc(1024, GFP_KERNEL);
 if(buffer==NULL) {
   printk("alllocate mem for file fail?\n");
   result = -1;
diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index 9e07a40480f..fb7775c5233 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -90,7 +90,7 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
-        pDevice->apdev = (struct net_device *)kmalloc(sizeof(struct net_device), GFP_KERNEL);
+        pDevice->apdev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
         if (pDevice->apdev == NULL)
                 return -ENOMEM;
         memset(pDevice->apdev, 0, sizeof(struct net_device));
@@ -768,7 +768,7 @@ int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
             p->length > VIAWGET_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
                 return -EINVAL;
 
-        param = (struct viawget_hostapd_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+        param = kmalloc((int)p->length, (int)GFP_KERNEL);
         if (param == NULL)
                 return -ENOMEM;
 
diff --git a/drivers/staging/vt6655/wpactl.c b/drivers/staging/vt6655/wpactl.c
index 574e0b0a9c2..4e886c16209 100644
--- a/drivers/staging/vt6655/wpactl.c
+++ b/drivers/staging/vt6655/wpactl.c
@@ -905,7 +905,7 @@ int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
             p->length > VIAWGET_WPA_MAX_BUF_SIZE || !p->pointer)
                 return -EINVAL;
 
-        param = (struct viawget_wpa_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+        param = kmalloc((int)p->length, (int)GFP_KERNEL);
         if (param == NULL)
                 return -ENOMEM;
 
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index ca007c30e0a..44386316b21 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -91,7 +91,7 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
-        pDevice->apdev = (struct net_device *)kmalloc(sizeof(struct net_device), GFP_KERNEL);
+        pDevice->apdev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
         if (pDevice->apdev == NULL)
                 return -ENOMEM;
         memset(pDevice->apdev, 0, sizeof(struct net_device));
@@ -766,7 +766,7 @@ int vt6656_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
             p->length > VIAWGET_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
                 return -EINVAL;
 
-        param = (struct viawget_hostapd_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+        param = kmalloc((int)p->length, (int)GFP_KERNEL);
         if (param == NULL)
                 return -ENOMEM;
 
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index f1d81b1656c..e4dc27dd21e 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -1511,7 +1511,7 @@ static UCHAR *Config_FileOperation(PSDevice pDevice) {
           goto error1;
         }
 
-    buffer = (UCHAR *)kmalloc(1024, GFP_KERNEL);
+    buffer = kmalloc(1024, GFP_KERNEL);
     if(buffer==NULL) {
       printk("alllocate mem for file fail?\n");
       result = -1;
diff --git a/drivers/staging/vt6656/wpactl.c b/drivers/staging/vt6656/wpactl.c
index 04a4875e601..8f7ad2c4308 100644
--- a/drivers/staging/vt6656/wpactl.c
+++ b/drivers/staging/vt6656/wpactl.c
@@ -926,7 +926,7 @@ int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
             p->length > VIAWGET_WPA_MAX_BUF_SIZE || !p->pointer)
                 return -EINVAL;
 
-        param = (struct viawget_wpa_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+        param = kmalloc((int)p->length, (int)GFP_KERNEL);
         if (param == NULL)
                 return -ENOMEM;
 
diff --git a/drivers/staging/wlags49_h2/wl_priv.c b/drivers/staging/wlags49_h2/wl_priv.c
index a67ff529d35..f2bfd3025e9 100644
--- a/drivers/staging/wlags49_h2/wl_priv.c
+++ b/drivers/staging/wlags49_h2/wl_priv.c
@@ -618,7 +618,7 @@ int wvlan_uil_put_info( struct uilreq *urq, struct wl_private *lp )
                                    LTV record, try to allocate it from the kernel stack.
                                    Otherwise, we just use our local LTV record. */
                                 if( urq->len > sizeof( lp->ltvRecord )) {
-                                        pLtv = (ltv_t *)kmalloc( urq->len, GFP_KERNEL );
+                                        pLtv = kmalloc(urq->len, GFP_KERNEL);
                                         if (pLtv != NULL) {
                                                 ltvAllocated = TRUE;
                                         } else {
@@ -1298,7 +1298,7 @@ int wvlan_uil_get_info( struct uilreq *urq, struct wl_private *lp )
                                    LTV record, try to allocate it from the kernel stack.
                                    Otherwise, we just use our local LTV record. */
                                 if( urq->len > sizeof( lp->ltvRecord )) {
-                                        pLtv = (ltv_t *)kmalloc( urq->len, GFP_KERNEL );
+                                        pLtv = kmalloc(urq->len, GFP_KERNEL);
                                         if (pLtv != NULL) {
                                                 ltvAllocated = TRUE;