[NET] kzalloc: use in alloc_netdev

Noticed this use, fixed it.
Signed-off-by: NPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/core/dev.c

@@ -3100,12 +3100,11 @@ struct net_device *alloc_netdev(int sizeof_priv, const char *name,
 	alloc_size = (sizeof(*dev) + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST;
 	alloc_size += sizeof_priv + NETDEV_ALIGN_CONST;
 
-	p = kmalloc(alloc_size, GFP_KERNEL);
+	p = kzalloc(alloc_size, GFP_KERNEL);
 	if (!p) {
 		printk(KERN_ERR "alloc_dev: Unable to allocate device.\n");
 		return NULL;
 	}
-	memset(p, 0, alloc_size);
 
 	dev = (struct net_device *)
 		(((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);