Fix a potential NULL pointer dereference in uli526x_interrupt() in drivers/net/tulip...

This patch fixes an apparent potential null dereference bug where we
dereference dev before a null check.  This patch simply remvoes the
can't-happen test for a null pointer.

Signed-off-by: Micah Gruber <micah.gruber@gmail.com>
Cc: Grant Grundler <grundler@parisc-linux.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c
index e64bde4..76e5561 100644 (file)
--- a/drivers/net/tulip/uli526x.c
+++ b/drivers/net/tulip/uli526x.c
@@ -664,11 +664,6 @@ static irqreturn_t uli526x_interrupt(int irq, void *dev_id)
        unsigned long ioaddr = dev->base_addr;
        unsigned long flags;
 
-       if (!dev) {
-               ULI526X_DBUG(1, "uli526x_interrupt() without DEVICE arg", 0);
-               return IRQ_NONE;
-       }
-
        spin_lock_irqsave(&db->lock, flags);
        outl(0, ioaddr + DCR7);