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, 6 deletions

diff --git a/drivers/net/de600.c b/drivers/net/de600.c
index d9b006c9e367..690bb40b353d 100644
--- a/drivers/net/de600.c
+++ b/drivers/net/de600.c
@@ -265,12 +265,6 @@ static irqreturn_t de600_interrupt(int irq, void *dev_id)
         int             retrig = 0;
         int             boguscount = 0;
 
-        /* This might just as well be deleted now, no crummy drivers present :-) */
-        if ((dev == NULL) || (DE600_IRQ != irq)) {
-                printk(KERN_ERR "%s: bogus interrupt %d\n", dev?dev->name:"DE-600", irq);
-                return IRQ_NONE;
-        }
-
         spin_lock(&de600_lock);
 
         select_nic();