drivers/net: eliminate irq handler impossible checks, needless casts
- Eliminate check for irq handler 'dev_id==NULL' where the
condition never occurs.
- Eliminate needless casts to/from void*
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sonic.c b/drivers/net/sonic.c
index cfece96..ed7aa0a 100644
--- a/drivers/net/sonic.c
+++ b/drivers/net/sonic.c
@@ -295,15 +295,10 @@
*/
static irqreturn_t sonic_interrupt(int irq, void *dev_id)
{
- struct net_device *dev = (struct net_device *) dev_id;
+ struct net_device *dev = dev_id;
struct sonic_local *lp = netdev_priv(dev);
int status;
- if (dev == NULL) {
- printk(KERN_ERR "sonic_interrupt: irq %d for unknown device.\n", irq);
- return IRQ_NONE;
- }
-
if (!(status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT))
return IRQ_NONE;