[IRDA] irda-usb.c: mostly kmalloc + memset conversion to k[cz]alloc

 drivers/net/irda/irda-usb.c | 59694 -> 59541 (-153 bytes)
 drivers/net/irda/irda-usb.o | 170588 -> 169256 (-1332 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 14 deletions

diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 0ac240ca905..3b0fd83fa26 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -1561,10 +1561,9 @@ static inline struct irda_class_desc *irda_usb_find_class_desc(struct usb_interf
         struct irda_class_desc *desc;
         int ret;
 
-        desc = kmalloc(sizeof (*desc), GFP_KERNEL);
-        if (desc == NULL) 
+        desc = kzalloc(sizeof(*desc), GFP_KERNEL);
+        if (!desc)
                 return NULL;
-        memset(desc, 0, sizeof(*desc));
 
         /* USB-IrDA class spec 1.0:
          *      6.1.3: Standard "Get Descriptor" Device Request is not
@@ -1617,7 +1616,7 @@ static int irda_usb_probe(struct usb_interface *intf,
 {
         struct net_device *net;
         struct usb_device *dev = interface_to_usbdev(intf);
-        struct irda_usb_cb *self = NULL;
+        struct irda_usb_cb *self;
         struct usb_host_interface *interface;
         struct irda_class_desc *irda_desc;
         int ret = -ENOMEM;
@@ -1655,7 +1654,7 @@ static int irda_usb_probe(struct usb_interface *intf,
                 self->header_length = USB_IRDA_HEADER;
         }
 
-        self->rx_urb = kzalloc(self->max_rx_urb * sizeof(struct urb *),
+        self->rx_urb = kcalloc(self->max_rx_urb, sizeof(struct urb *),
                                 GFP_KERNEL);
 
         for (i = 0; i < self->max_rx_urb; i++) {
@@ -1715,7 +1714,7 @@ static int irda_usb_probe(struct usb_interface *intf,
         /* Find IrDA class descriptor */
         irda_desc = irda_usb_find_class_desc(intf);
         ret = -ENODEV;
-        if (irda_desc == NULL)
+        if (!irda_desc)
                 goto err_out_3;
 
         if (self->needspatch) {
@@ -1738,15 +1737,13 @@ 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 = kmalloc(IRDA_USB_SPEED_MTU, GFP_KERNEL);
-        if (self->speed_buff == NULL) 
+        self->speed_buff = kzalloc(IRDA_USB_SPEED_MTU, GFP_KERNEL);
+        if (!self->speed_buff)
                 goto err_out_3;
 
-        memset(self->speed_buff, 0, IRDA_USB_SPEED_MTU);
-
         self->tx_buff = kzalloc(IRDA_SKB_MAX_MTU + self->header_length,
                                 GFP_KERNEL);
-        if (self->tx_buff == NULL)
+        if (!self->tx_buff)
                 goto err_out_4;
 
         ret = irda_usb_open(self);
@@ -1767,12 +1764,11 @@ static int irda_usb_probe(struct usb_interface *intf,
 
                 /* replace IrDA class descriptor with what patched device is now reporting */
                 irda_desc = irda_usb_find_class_desc (self->usbintf);
-                if (irda_desc == NULL) {
+                if (!irda_desc) {
                         ret = -ENODEV;
                         goto err_out_6;
                 }
-                if (self->irda_desc)
-                        kfree (self->irda_desc);
+                kfree(self->irda_desc);
                 self->irda_desc = irda_desc;
                 irda_usb_init_qos(self);
         }