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/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index e17f977..3f4b640 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -1540,16 +1540,12 @@
static irqreturn_t
de4x5_interrupt(int irq, void *dev_id)
{
- struct net_device *dev = (struct net_device *)dev_id;
+ struct net_device *dev = dev_id;
struct de4x5_private *lp;
s32 imr, omr, sts, limit;
u_long iobase;
unsigned int handled = 0;
- if (dev == NULL) {
- printk ("de4x5_interrupt(): irq %d for unknown device.\n", irq);
- return IRQ_NONE;
- }
lp = netdev_priv(dev);
spin_lock(&lp->lock);
iobase = dev->base_addr;