drivers/net: Remove unnecessary k.alloc/v.alloc OOM messages

alloc failures use dump_stack so emitting an additional
out-of-memory message is an unnecessary duplication.

Remove the allocation failure messages.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 579e7fc..98a5a7d 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -639,10 +639,8 @@
 	printk(KERN_INFO "slcan: %d dynamic interface channels.\n", maxdev);
 
 	slcan_devs = kzalloc(sizeof(struct net_device *)*maxdev, GFP_KERNEL);
-	if (!slcan_devs) {
-		printk(KERN_ERR "slcan: can't allocate slcan device array!\n");
+	if (!slcan_devs)
 		return -ENOMEM;
-	}
 
 	/* Fill in our line protocol discipline, and register it */
 	status = tty_register_ldisc(N_SLCAN, &slc_ldisc);