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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>
This commit is contained in:
Tom Herbert 2010-10-18 17:55:58 +00:00 committed by David S. Miller
parent 5eeaa2db16
commit 55513fb428
1 changed files with 6 additions and 0 deletions
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6
net/core/dev.c
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@ -5511,6 +5511,12 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
BUG_ON(strlen(name) >= sizeof(dev->name)); 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); alloc_size = sizeof(struct net_device);
if (sizeof_priv) { if (sizeof_priv) {
/* ensure 32-byte alignment of private area */ /* ensure 32-byte alignment of private area */