From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 20 Jul 2012 02:28:46 +0000 (+0000)
Subject: net: honour netif_set_real_num_tx_queues() retval
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ee6ae1a1d58c70fc864bc777a36be56b0880ebff;p=openwrt%2Fstaging%2Fblogic.git

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 ab0251d541ab..eb06e58bed0b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2110,7 +2110,12 @@ static inline int netif_set_real_num_rx_queues(struct net_device *dev,
 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);