[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>

diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 0ac240ca905b8504d7a9524e532c0a6f5e504608..3b0fd83fa26634351695b3f98e68a550c83d5701 100644 (file)
--- 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);
        }