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, 2 insertions, 2 deletions

diff --git a/drivers/net/dgrs.c b/drivers/net/dgrs.c
index 6b1234b09fb3..a79520295fd0 100644
--- a/drivers/net/dgrs.c
+++ b/drivers/net/dgrs.c
@@ -897,8 +897,8 @@ static int dgrs_ioctl(struct net_device *devN, struct ifreq *ifr, int cmd)
 
 static irqreturn_t dgrs_intr(int irq, void *dev_id)
 {
-        struct net_device       *dev0 = (struct net_device *) dev_id;
-        DGRS_PRIV       *priv0 = (DGRS_PRIV *) dev0->priv;
+        struct net_device       *dev0 = dev_id;
+        DGRS_PRIV       *priv0 = dev0->priv;
         I596_CB         *cbp;
         int             cmd;
         int             i;