diff mbox

[net-next] net: core: Traverse the adjacency list from first entry

Message ID 1477463962-2802-1-git-send-email-idosch@idosch.org
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Ido Schimmel Oct. 26, 2016, 6:39 a.m. UTC 
From: Ido Schimmel <idosch@mellanox.com>

netdev_next_lower_dev() returns NULL when we finished traversing the
adjacency list ('iter' points to the list's head). Therefore, we must
start traversing the list from the first entry and not its head.

Fixes: 1a3f060c1a47 ("net: Introduce new api for walking upper and lower devices")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
---
 net/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/net/core/dev.c b/net/core/dev.c
index f55fb45..d9c937f 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5419,7 +5419,7 @@  int netdev_walk_all_lower_dev(struct net_device *dev,
 	struct list_head *iter;
 	int ret;
 
-	for (iter = &dev->adj_list.lower,
+	for (iter = dev->adj_list.lower.next,
 	     ldev = netdev_next_lower_dev(dev, &iter);
 	     ldev;
 	     ldev = netdev_next_lower_dev(dev, &iter)) {