net: fail alloc_netdev_mq if queue count < 1
In alloc_netdev_mq fail if requested queue_count < 1.
Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index 04972a4..f44d29a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5511,6 +5511,12 @@
BUG_ON(strlen(name) >= sizeof(dev->name));
+ if (queue_count < 1) {
+ pr_err("alloc_netdev: Unable to allocate device "
+ "with zero queues.\n");
+ return NULL;
+ }
+
alloc_size = sizeof(struct net_device);
if (sizeof_priv) {
/* ensure 32-byte alignment of private area */
