[PATCH] rps: memory leak due to forget to release rx queues

[Changli Gao <xiaosuo@gmail.com>]

memory leak due to forget to release rx queues.

rx queues is allocated in alloc_netdev_mq(), but they aren't released in
free_netdev(), and the field rps_map is also miss.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
----
net/core/dev.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index c0e2608..51b86e0 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5746,6 +5746,14 @@ void free_netdev(struct net_device *dev)
 
 	release_net(dev_net(dev));
 
+	if (dev->num_rx_queues) {
+		int i;
+
+		for (i = 0; i < dev->num_rx_queues; i++)
+			kfree(dev->_rx[i].rps_map);
+		kfree(dev->_rx);
+	}
+
 	kfree(dev->_tx);
 
 	/* Flush device addresses */