net: honour netif_set_real_num_tx_queues() retval
In netif_copy_real_num_queues() the return value of
netif_set_real_num_tx_queues() should be checked.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ab0251d..eb06e58 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2110,7 +2110,12 @@
static inline int netif_copy_real_num_queues(struct net_device *to_dev,
const struct net_device *from_dev)
{
- netif_set_real_num_tx_queues(to_dev, from_dev->real_num_tx_queues);
+ int err;
+
+ err = netif_set_real_num_tx_queues(to_dev,
+ from_dev->real_num_tx_queues);
+ if (err)
+ return err;
#ifdef CONFIG_RPS
return netif_set_real_num_rx_queues(to_dev,
from_dev->real_num_rx_queues);
