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Subject[PATCH 41] drivers/net/irda/irda-usb.c: mostly kmalloc + memset conversion to k[cz]alloc
Date
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>

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

drivers/net/irda/irda-usb.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)

--- linux-2.6.23-rc1-mm1-a/drivers/net/irda/irda-usb.c 2007-07-26 13:07:42.000000000 +0200
+++ linux-2.6.23-rc1-mm1-b/drivers/net/irda/irda-usb.c 2007-07-31 18:07:03.000000000 +0200
@@ -1561,10 +1561,9 @@ static inline struct irda_class_desc *ir
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_int
{
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_int
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_int
/* 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_int
/* 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_int

/* 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);
}
-
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