15 files changed, 23 insertions, 48 deletions

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);
         }