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>

1 files changed, 0 insertions, 7 deletions

diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c
index ac600212d9a9..2412ce4917f2 100644
--- a/drivers/net/yellowfin.c
+++ b/drivers/net/yellowfin.c
@@ -896,13 +896,6 @@ static irqreturn_t yellowfin_interrupt(int irq, void *dev_instance)
         int boguscnt = max_interrupt_work;
         unsigned int handled = 0;
 
-#ifndef final_version                   /* Can never occur. */
-        if (dev == NULL) {
-                printk (KERN_ERR "yellowfin_interrupt(): irq %d for unknown device.\n", irq);
-                return IRQ_NONE;
-        }
-#endif
-
         yp = netdev_priv(dev);
         ioaddr = yp->base;