[PATCH] USB: kzalloc() conversion for rest of drivers/usb

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

29 files changed, 48 insertions, 101 deletions

diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index ec7eb3f4f867..766061e0260a 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -220,13 +220,9 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags)
                 ehci->periodic [i] = EHCI_LIST_END;
 
         /* software shadow of hardware table */
-        ehci->pshadow = kmalloc (ehci->periodic_size * sizeof (void *), flags);
-        if (ehci->pshadow == NULL) {
-                goto fail;
-        }
-        memset (ehci->pshadow, 0, ehci->periodic_size * sizeof (void *));
-
-        return 0;
+        ehci->pshadow = kcalloc(ehci->periodic_size, sizeof(void *), flags);
+        if (ehci->pshadow != NULL)
+                return 0;
 
 fail:
         ehci_dbg (ehci, "couldn't init memory\n");
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 90d6900a37f4..5871944e6145 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -864,9 +864,8 @@ iso_sched_alloc (unsigned packets, gfp_t mem_flags)
         int                     size = sizeof *iso_sched;
 
         size += packets * sizeof (struct ehci_iso_packet);
-        iso_sched = kmalloc (size, mem_flags);
+        iso_sched = kzalloc(size, mem_flags);
         if (likely (iso_sched != NULL)) {
-                memset(iso_sched, 0, size);
                 INIT_LIST_HEAD (&iso_sched->td_list);
         }
         return iso_sched;
diff --git a/drivers/usb/host/hc_crisv10.c b/drivers/usb/host/hc_crisv10.c
index 641268d7e6f3..2fe7fd19437b 100644
--- a/drivers/usb/host/hc_crisv10.c
+++ b/drivers/usb/host/hc_crisv10.c
@@ -2137,10 +2137,9 @@ static int etrax_usb_submit_bulk_urb(struct urb *urb)
         urb->status = -EINPROGRESS;
 
         /* Setup the hcpriv data. */
-        urb_priv = kmalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
+        urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
         assert(urb_priv != NULL);
         /* This sets rx_offset to 0. */
-        memset(urb_priv, 0, sizeof(etrax_urb_priv_t));
         urb_priv->urb_state = NOT_STARTED;
         urb->hcpriv = urb_priv;
 
@@ -2475,10 +2474,9 @@ static int etrax_usb_submit_ctrl_urb(struct urb *urb)
         urb->status = -EINPROGRESS;
 
         /* Setup the hcpriv data. */
-        urb_priv = kmalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
+        urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
         assert(urb_priv != NULL);
         /* This sets rx_offset to 0. */
-        memset(urb_priv, 0, sizeof(etrax_urb_priv_t));
         urb_priv->urb_state = NOT_STARTED;
         urb->hcpriv = urb_priv;
 
@@ -2767,9 +2765,8 @@ static void etrax_usb_add_to_intr_sb_list(struct urb *urb, int epid)
         maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
         interval = urb->interval;
 
-        urb_priv = kmalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
+        urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
         assert(urb_priv != NULL);
-        memset(urb_priv, 0, sizeof(etrax_urb_priv_t));
         urb->hcpriv = urb_priv;
 
         first_ep = &TxIntrEPList[0];
@@ -2997,9 +2994,8 @@ static void etrax_usb_add_to_isoc_sb_list(struct urb *urb, int epid)
 
         prev_sb_desc = next_sb_desc = temp_sb_desc = NULL;
 
-        urb_priv = kmalloc(sizeof(etrax_urb_priv_t), GFP_ATOMIC);
+        urb_priv = kzalloc(sizeof(etrax_urb_priv_t), GFP_ATOMIC);
         assert(urb_priv != NULL);
-        memset(urb_priv, 0, sizeof(etrax_urb_priv_t));
 
         urb->hcpriv = urb_priv;
         urb_priv->epid = epid;
diff --git a/drivers/usb/media/ov511.c b/drivers/usb/media/ov511.c
index 1d887ec06080..da44579d6f29 100644
--- a/drivers/usb/media/ov511.c
+++ b/drivers/usb/media/ov511.c
@@ -5686,13 +5686,11 @@ ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id)
         if (idesc->bInterfaceSubClass != 0x00)
                 return -ENODEV;
 
-        if ((ov = kmalloc(sizeof(*ov), GFP_KERNEL)) == NULL) {
+        if ((ov = kzalloc(sizeof(*ov), GFP_KERNEL)) == NULL) {
                 err("couldn't kmalloc ov struct");
                 goto error_out;
         }
 
-        memset(ov, 0, sizeof(*ov));
-
         ov->dev = dev;
         ov->iface = idesc->bInterfaceNumber;
         ov->led_policy = led;
diff --git a/drivers/usb/media/pwc/pwc-if.c b/drivers/usb/media/pwc/pwc-if.c
index db6753dc5ba5..90eb26042817 100644
--- a/drivers/usb/media/pwc/pwc-if.c
+++ b/drivers/usb/media/pwc/pwc-if.c
@@ -1867,12 +1867,11 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
                 Info("Warning: more than 1 configuration available.\n");
 
         /* Allocate structure, initialize pointers, mutexes, etc. and link it to the usb_device */
-        pdev = kmalloc(sizeof(struct pwc_device), GFP_KERNEL);
+        pdev = kzalloc(sizeof(struct pwc_device), GFP_KERNEL);
         if (pdev == NULL) {
                 Err("Oops, could not allocate memory for pwc_device.\n");
                 return -ENOMEM;
         }
-        memset(pdev, 0, sizeof(struct pwc_device));
         pdev->type = type_id;
         pdev->vsize = default_size;
         pdev->vframes = default_fps;
diff --git a/drivers/usb/media/se401.c b/drivers/usb/media/se401.c
index 8c3b1ad8a8fd..f03ea7f89596 100644
--- a/drivers/usb/media/se401.c
+++ b/drivers/usb/media/se401.c
@@ -1345,13 +1345,11 @@ static int se401_probe(struct usb_interface *intf,
         /* We found one */
         info("SE401 camera found: %s", camera_name);
 
-        if ((se401 = kmalloc(sizeof(*se401), GFP_KERNEL)) == NULL) {
+        if ((se401 = kzalloc(sizeof(*se401), GFP_KERNEL)) == NULL) {
                 err("couldn't kmalloc se401 struct");
                 return -ENOMEM;
         }
 
-        memset(se401, 0, sizeof(*se401));
-
         se401->dev = dev;
         se401->iface = interface->bInterfaceNumber;
         se401->camera_name = camera_name;
diff --git a/drivers/usb/media/stv680.c b/drivers/usb/media/stv680.c
index b1a6be2958ed..9636da20748d 100644
--- a/drivers/usb/media/stv680.c
+++ b/drivers/usb/media/stv680.c
@@ -318,12 +318,11 @@ static int stv_init (struct usb_stv *stv680)
         unsigned char *buffer;
         unsigned long int bufsize;
 
-        buffer = kmalloc (40, GFP_KERNEL);
+        buffer = kzalloc (40, GFP_KERNEL);
         if (buffer == NULL) {
                 PDEBUG (0, "STV(e): Out of (small buf) memory");
                 return -1;
         }
-        memset (buffer, 0, 40);
         udelay (100);
 
         /* set config 1, interface 0, alternate 0 */
@@ -1388,14 +1387,12 @@ static int stv680_probe (struct usb_interface *intf, const struct usb_device_id
                 goto error;
         }
         /* We found one */
-        if ((stv680 = kmalloc (sizeof (*stv680), GFP_KERNEL)) == NULL) {
+        if ((stv680 = kzalloc (sizeof (*stv680), GFP_KERNEL)) == NULL) {
                 PDEBUG (0, "STV(e): couldn't kmalloc stv680 struct.");
                 retval = -ENOMEM;
                 goto error;
         }
 
-        memset (stv680, 0, sizeof (*stv680));
-
         stv680->udev = dev;
         stv680->camera_name = camera_name;
 
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index ad2f4cccd388..1fef36e71c57 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -570,10 +570,9 @@ static int auerchain_setup (pauerchain_t acp, unsigned int numElements)
 
         /* fill the list of free elements */
         for (;numElements; numElements--) {
-                acep = (pauerchainelement_t) kmalloc (sizeof (auerchainelement_t), GFP_KERNEL);
+                acep = kzalloc(sizeof(auerchainelement_t), GFP_KERNEL);
                 if (!acep)
                         goto ac_fail;
-                memset (acep, 0, sizeof (auerchainelement_t));
                 INIT_LIST_HEAD (&acep->list);
                 list_add_tail (&acep->list, &acp->free_list);
         }
@@ -761,10 +760,9 @@ static int auerbuf_setup (pauerbufctl_t bcp, unsigned int numElements, unsigned
 
         /* fill the list of free elements */
         for (;numElements; numElements--) {
-                bep = (pauerbuf_t) kmalloc (sizeof (auerbuf_t), GFP_KERNEL);
+                bep = kzalloc(sizeof(auerbuf_t), GFP_KERNEL);
                 if (!bep)
                         goto bl_fail;
-                memset (bep, 0, sizeof (auerbuf_t));
                 bep->list = bcp;
                 INIT_LIST_HEAD (&bep->buff_list);
                 bep->bufp = kmalloc (bufsize, GFP_KERNEL);
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index cc3dae3f34e0..c82c402285a0 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -270,12 +270,11 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id
         int retval = -ENOMEM;
 
         /* allocate memory for our device state and initialize it */
-        dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
         if (dev == NULL) {
                 err("Out of memory");
                 goto error;
         }
-        memset(dev, 0x00, sizeof(*dev));
         kref_init(&dev->kref);
 
         dev->udev = usb_get_dev(interface_to_usbdev(interface));
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 84fa1728f052..9d59b901841c 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -382,12 +382,11 @@ alloc_sglist (int nents, int max, int vary)
         for (i = 0; i < nents; i++) {
                 char            *buf;
 
-                buf = kmalloc (size, SLAB_KERNEL);
+                buf = kzalloc (size, SLAB_KERNEL);
                 if (!buf) {
                         free_sglist (sg, i);
                         return NULL;
                 }
-                memset (buf, 0, size);
 
                 /* kmalloc pages are always physically contiguous! */
                 sg_init_one(&sg[i], buf, size);
@@ -842,10 +841,9 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
          * as with bulk/intr sglists, sglen is the queue depth; it also
          * controls which subtests run (more tests than sglen) or rerun.
          */
-        urb = kmalloc (param->sglen * sizeof (struct urb *), SLAB_KERNEL);
+        urb = kcalloc(param->sglen, sizeof(struct urb *), SLAB_KERNEL);
         if (!urb)
                 return -ENOMEM;
-        memset (urb, 0, param->sglen * sizeof (struct urb *));
         for (i = 0; i < param->sglen; i++) {
                 int                     pipe = usb_rcvctrlpipe (udev, 0);
                 unsigned                len;
@@ -1865,10 +1863,9 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
         }
 #endif
 
-        dev = kmalloc (sizeof *dev, SLAB_KERNEL);
+        dev = kzalloc(sizeof(*dev), SLAB_KERNEL);
         if (!dev)
                 return -ENOMEM;
-        memset (dev, 0, sizeof *dev);
         info = (struct usbtest_info *) id->driver_info;
         dev->info = info;
         init_MUTEX (&dev->sem);
diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c
index b03e346e33f1..6ecc27302211 100644
--- a/drivers/usb/mon/mon_main.c
+++ b/drivers/usb/mon/mon_main.c
@@ -277,9 +277,8 @@ static void mon_bus_init(struct dentry *mondir, struct usb_bus *ubus)
         char name[NAMESZ];
         int rc;
 
-        if ((mbus = kmalloc(sizeof(struct mon_bus), GFP_KERNEL)) == NULL)
+        if ((mbus = kzalloc(sizeof(struct mon_bus), GFP_KERNEL)) == NULL)
                 goto err_alloc;
-        memset(mbus, 0, sizeof(struct mon_bus));
         kref_init(&mbus->ref);
         spin_lock_init(&mbus->lock);
         INIT_LIST_HEAD(&mbus->r_list);
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index 59089e8b7e5e..ac043ec2b8dc 100644
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -213,12 +213,11 @@ static int mon_text_open(struct inode *inode, struct file *file)
         mbus = inode->u.generic_ip;
         ubus = mbus->u_bus;
 
-        rp = kmalloc(sizeof(struct mon_reader_text), GFP_KERNEL);
+        rp = kzalloc(sizeof(struct mon_reader_text), GFP_KERNEL);
         if (rp == NULL) {
                 rc = -ENOMEM;
                 goto err_alloc;
         }
-        memset(rp, 0, sizeof(struct mon_reader_text));
         INIT_LIST_HEAD(&rp->e_list);
         init_waitqueue_head(&rp->wait);
         mutex_init(&rp->printf_lock);
diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c
index f3a8e2807c3b..fe9b60cd8d95 100644
--- a/drivers/usb/net/zd1201.c
+++ b/drivers/usb/net/zd1201.c
@@ -621,10 +621,9 @@ static int zd1201_drvr_start(struct zd1201 *zd)
         __le16 zdmax;
         unsigned char *buffer;
         
-        buffer = kmalloc(ZD1201_RXSIZE, GFP_KERNEL);
+        buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
         if (!buffer)
                 return -ENOMEM;
-        memset(buffer, 0, ZD1201_RXSIZE);
 
         usb_fill_bulk_urb(zd->rx_urb, zd->usb, 
             usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
@@ -1750,11 +1749,9 @@ static int zd1201_probe(struct usb_interface *interface,
 
         usb = interface_to_usbdev(interface);
 
-        zd = kmalloc(sizeof(struct zd1201), GFP_KERNEL);
-        if (!zd) {
+        zd = kzalloc(sizeof(struct zd1201), GFP_KERNEL);
+        if (!zd)
                 return -ENOMEM;
-        }
-        memset(zd, 0, sizeof(struct zd1201));
         zd->ap = ap;
         zd->usb = usb;
         zd->removed = 0;
diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c
index dc7a069503e0..9ea7b4a4a22b 100644
--- a/drivers/usb/serial/cp2101.c
+++ b/drivers/usb/serial/cp2101.c
@@ -169,9 +169,7 @@ static int cp2101_get_config(struct usb_serial_port* port, u8 request,
         /* Number of integers required to contain the array */
         length = (((size - 1) | 3) + 1)/4;
 
-        buf = kmalloc (length * sizeof(u32), GFP_KERNEL);
-        memset(buf, 0, length * sizeof(u32));
-
+        buf = kcalloc(length, sizeof(u32), GFP_KERNEL);
         if (!buf) {
                 dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__);
                 return -ENOMEM;
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 68067fe117a4..71af3bf5adb7 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -435,11 +435,10 @@ static int generic_startup (struct usb_serial *serial)
 
         dbg("%s - port %d", __FUNCTION__, serial->port[0]->number);
 
-        priv = kmalloc(sizeof (struct cypress_private), GFP_KERNEL);
+        priv = kzalloc(sizeof (struct cypress_private), GFP_KERNEL);
         if (!priv)
                 return -ENOMEM;
 
-        memset(priv, 0x00, sizeof (struct cypress_private));
         spin_lock_init(&priv->lock);
         priv->buf = cypress_buf_alloc(CYPRESS_BUF_SIZE);
         if (priv->buf == NULL) {
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c145e1ed8429..ece52a6328b5 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1141,12 +1141,11 @@ static int ftdi_sio_attach (struct usb_serial *serial)
         
         dbg("%s",__FUNCTION__);
 
-        priv = kmalloc(sizeof(struct ftdi_private), GFP_KERNEL);
+        priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
         if (!priv){
                 err("%s- kmalloc(%Zd) failed.", __FUNCTION__, sizeof(struct ftdi_private));
                 return -ENOMEM;
         }
-        memset(priv, 0, sizeof(*priv));
 
         spin_lock_init(&priv->rx_lock);
         init_waitqueue_head(&priv->delta_msr_wait);
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index d6f55e9dccae..5ec9bf5bac8d 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1422,12 +1422,11 @@ static int garmin_attach (struct usb_serial *serial)
 
         dbg("%s", __FUNCTION__);
 
-        garmin_data_p = kmalloc (sizeof(struct garmin_data), GFP_KERNEL);
+        garmin_data_p = kzalloc(sizeof(struct garmin_data), GFP_KERNEL);
         if (garmin_data_p == NULL) {
                 dev_err(&port->dev, "%s - Out of memory\n", __FUNCTION__);
                 return -ENOMEM;
         }
-        memset (garmin_data_p, 0, sizeof(struct garmin_data));
         init_timer(&garmin_data_p->timer);
         spin_lock_init(&garmin_data_p->lock);
         INIT_LIST_HEAD(&garmin_data_p->pktlist);
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 3f29e6b0fd19..b606c5968102 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -2725,12 +2725,11 @@ static int edge_startup (struct usb_serial *serial)
         dev = serial->dev;
 
         /* create our private serial structure */
-        edge_serial = kmalloc (sizeof(struct edgeport_serial), GFP_KERNEL);
+        edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
         if (edge_serial == NULL) {
                 dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__);
                 return -ENOMEM;
         }
-        memset (edge_serial, 0, sizeof(struct edgeport_serial));
         spin_lock_init(&edge_serial->es_lock);
         edge_serial->serial = serial;
         usb_set_serial_data(serial, edge_serial);
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index afc0f34b3a46..8e1e2253748b 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2727,12 +2727,11 @@ static int edge_startup (struct usb_serial *serial)
         dev = serial->dev;
 
         /* create our private serial structure */
-        edge_serial = kmalloc (sizeof(struct edgeport_serial), GFP_KERNEL);
+        edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
         if (edge_serial == NULL) {
                 dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__);
                 return -ENOMEM;
         }
-        memset (edge_serial, 0, sizeof(struct edgeport_serial));
         sema_init(&edge_serial->es_sem, 1);
         edge_serial->serial = serial;
         usb_set_serial_data(serial, edge_serial);
@@ -2745,12 +2744,11 @@ static int edge_startup (struct usb_serial *serial)
 
         /* set up our port private structures */
         for (i = 0; i < serial->num_ports; ++i) {
-                edge_port = kmalloc (sizeof(struct edgeport_port), GFP_KERNEL);
+                edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL);
                 if (edge_port == NULL) {
                         dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__);
                         goto cleanup;
                 }
-                memset (edge_port, 0, sizeof(struct edgeport_port));
                 spin_lock_init(&edge_port->ep_lock);
                 edge_port->ep_out_buf = edge_buf_alloc(EDGE_OUT_BUF_SIZE);
                 if (edge_port->ep_out_buf == NULL) {
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index a59010421444..426182ddc42a 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -184,10 +184,9 @@ static struct irda_class_desc *irda_usb_find_class_desc(struct usb_device *dev,
         struct irda_class_desc *desc;
         int ret;
                 
-        desc = kmalloc(sizeof (struct irda_class_desc), GFP_KERNEL);
+        desc = kzalloc(sizeof (struct irda_class_desc), GFP_KERNEL);
         if (desc == NULL) 
                 return NULL;
-        memset(desc, 0, sizeof(struct irda_class_desc));
         
         ret = usb_control_msg(dev, usb_rcvctrlpipe(dev,0),
                         IU_REQ_GET_CLASS_DESC,
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 3b958e60f5e8..052b735c4fbd 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -2250,12 +2250,11 @@ static int keyspan_startup (struct usb_serial *serial)
         }
 
         /* Setup private data for serial driver */
-        s_priv = kmalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
+        s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
         if (!s_priv) {
                 dbg("%s - kmalloc for keyspan_serial_private failed.", __FUNCTION__);
                 return -ENOMEM;
         }
-        memset(s_priv, 0, sizeof(struct keyspan_serial_private));
 
         s_priv->device_details = d_details;
         usb_set_serial_data(serial, s_priv);
@@ -2263,12 +2262,11 @@ static int keyspan_startup (struct usb_serial *serial)
         /* Now setup per port private data */
         for (i = 0; i < serial->num_ports; i++) {
                 port = serial->port[i];
-                p_priv = kmalloc(sizeof(struct keyspan_port_private), GFP_KERNEL);
+                p_priv = kzalloc(sizeof(struct keyspan_port_private), GFP_KERNEL);
                 if (!p_priv) {
                         dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __FUNCTION__, i);
                         return (1);
                 }
-                memset(p_priv, 0, sizeof(struct keyspan_port_private));
                 p_priv->device_details = d_details;
                 usb_set_serial_port_data(port, p_priv);
         }
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index b8b213185d0f..87dfcd89ffab 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -255,11 +255,9 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp)
         }
         
         // allocate memory for transfer buffer
-        transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);  
+        transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
         if (! transfer_buffer) {
                 return -ENOMEM;
-        } else {
-                memset(transfer_buffer, 0, transfer_buffer_length);
         }
         
         // allocate write_urb
@@ -383,11 +381,10 @@ static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs)
                 
                 // BEGIN DEBUG
                 /*
-                  dbg_data = (unsigned char *) kmalloc((3 *  purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
+                  dbg_data = kzalloc((3 *  purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
                   if (! dbg_data) {
                   return;
                   }
-                  memset(dbg_data, 0, (3 *  purb->actual_length + 10));
                   for (i = 0; i < purb->actual_length; i++) { 
                   sprintf(dbg_data +3*i, "%02X ", data[i]); 
                   }
@@ -518,11 +515,10 @@ static int kobil_tiocmget(struct usb_serial_port *port, struct file *file)
         }
 
         // allocate memory for transfer buffer
-        transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);  
+        transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
         if (!transfer_buffer) {
                 return -ENOMEM;
         }
-        memset(transfer_buffer, 0, transfer_buffer_length);
 
         result = usb_control_msg( port->serial->dev, 
                                   usb_rcvctrlpipe(port->serial->dev, 0 ), 
@@ -564,11 +560,10 @@ static int  kobil_tiocmset(struct usb_serial_port *port, struct file *file,
         }
 
         // allocate memory for transfer buffer
-        transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
+        transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
         if (! transfer_buffer) {
                 return -ENOMEM;
         }
-        memset(transfer_buffer, 0, transfer_buffer_length);
 
         if (set & TIOCM_RTS)
                 rts = 1;
@@ -655,11 +650,10 @@ static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
                                                    (struct termios __user *)arg))
                         return -EFAULT;
                 
-                settings = (unsigned char *) kmalloc(50, GFP_KERNEL);  
+                settings = kzalloc(50, GFP_KERNEL);
                 if (! settings) {
                         return -ENOBUFS;
                 }
-                memset(settings, 0, 50);
 
                 switch (priv->internal_termios.c_cflag & CBAUD) {
                 case B1200:
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index b6d6cab9c859..35bd29b6c408 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -348,10 +348,9 @@ static int mct_u232_startup (struct usb_serial *serial)
         struct mct_u232_private *priv;
         struct usb_serial_port *port, *rport;
 
-        priv = kmalloc(sizeof(struct mct_u232_private), GFP_KERNEL);
+        priv = kzalloc(sizeof(struct mct_u232_private), GFP_KERNEL);
         if (!priv)
                 return -ENOMEM;
-        memset(priv, 0, sizeof(struct mct_u232_private));
         spin_lock_init(&priv->lock);
         usb_set_serial_port_data(serial->port[0], priv);
 
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 52bdf6fe46f2..a8455c9e79dd 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -631,13 +631,12 @@ static int option_startup(struct usb_serial *serial)
         /* Now setup per port private data */
         for (i = 0; i < serial->num_ports; i++) {
                 port = serial->port[i];
-                portdata = kmalloc(sizeof(*portdata), GFP_KERNEL);
+                portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
                 if (!portdata) {
                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
                                         __FUNCTION__, i);
                         return (1);
                 }
-                memset(portdata, 0, sizeof(struct option_port_private));
 
                 usb_set_serial_port_data(port, portdata);
 
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 37c81c08faad..cf2213bae0e0 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -218,10 +218,9 @@ static int pl2303_startup (struct usb_serial *serial)
         dbg("device type: %d", type);
 
         for (i = 0; i < serial->num_ports; ++i) {
-                priv = kmalloc (sizeof (struct pl2303_private), GFP_KERNEL);
+                priv = kzalloc(sizeof(struct pl2303_private), GFP_KERNEL);
                 if (!priv)
                         goto cleanup;
-                memset (priv, 0x00, sizeof (struct pl2303_private));
                 spin_lock_init(&priv->lock);
                 priv->buf = pl2303_buf_alloc(PL2303_BUF_SIZE);
                 if (priv->buf == NULL) {
@@ -383,12 +382,11 @@ static void pl2303_set_termios (struct usb_serial_port *port, struct termios *ol
                 }
         }
 
-        buf = kmalloc (7, GFP_KERNEL);
+        buf = kzalloc (7, GFP_KERNEL);
         if (!buf) {
                 dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__);
                 return;
         }
-        memset (buf, 0x00, 0x07);
         
         i = usb_control_msg (serial->dev, usb_rcvctrlpipe (serial->dev, 0),
                              GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE,
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index c18db3257073..c3a2071b802d 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -416,12 +416,11 @@ static int ti_startup(struct usb_serial *serial)
             dev->actconfig->desc.bConfigurationValue);
 
         /* create device structure */
-        tdev = kmalloc(sizeof(struct ti_device), GFP_KERNEL);
+        tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
         if (tdev == NULL) {
                 dev_err(&dev->dev, "%s - out of memory\n", __FUNCTION__);
                 return -ENOMEM;
         }
-        memset(tdev, 0, sizeof(struct ti_device));
         sema_init(&tdev->td_open_close_sem, 1);
         tdev->td_serial = serial;
         usb_set_serial_data(serial, tdev);
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index b5c96e74a903..097f4e8488fe 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -564,12 +564,11 @@ static struct usb_serial * create_serial (struct usb_device *dev,
 {
         struct usb_serial *serial;
 
-        serial = kmalloc (sizeof (*serial), GFP_KERNEL);
+        serial = kzalloc(sizeof(*serial), GFP_KERNEL);
         if (!serial) {
                 dev_err(&dev->dev, "%s - out of memory\n", __FUNCTION__);
                 return NULL;
         }
-        memset (serial, 0, sizeof(*serial));
         serial->dev = usb_get_dev(dev);
         serial->type = driver;
         serial->interface = interface;
@@ -778,10 +777,9 @@ int usb_serial_probe(struct usb_interface *interface,
         serial->num_port_pointers = max_endpoints;
         dbg("%s - setting up %d port structures for this device", __FUNCTION__, max_endpoints);
         for (i = 0; i < max_endpoints; ++i) {
-                port = kmalloc(sizeof(struct usb_serial_port), GFP_KERNEL);
+                port = kzalloc(sizeof(struct usb_serial_port), GFP_KERNEL);
                 if (!port)
                         goto probe_error;
-                memset(port, 0x00, sizeof(struct usb_serial_port));
                 port->number = i + serial->minor;
                 port->serial = serial;
                 spin_lock_init(&port->lock);
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 11a48d874752..f5c3841d4843 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -763,10 +763,9 @@ static int generic_startup(struct usb_serial *serial)
         int i;
 
         for (i = 0; i < serial->num_ports; ++i) {
-                priv = kmalloc (sizeof(*priv), GFP_KERNEL);
+                priv = kzalloc (sizeof(*priv), GFP_KERNEL);
                 if (!priv)
                         return -ENOMEM;
-                memset (priv, 0x00, sizeof(*priv));
                 spin_lock_init(&priv->lock);
                 usb_set_serial_port_data(serial->port[i], priv);
         }
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 7308e8cbe8f9..6831dca93c1b 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -1382,7 +1382,7 @@ static int isd200_init_info(struct us_data *us)
         } else
                 US_DEBUGP("ERROR - kmalloc failure\n");
 
-        return(retStatus);
+        return retStatus;
 }
 
 /**************************************************************************