[PATCH 01/84] cfg80211: check wdev->netdev in connection work

From: Kamal Mostafa
Date: Mon Jun 17 2013 - 13:58:10 EST -stable review patch. If anyone has any objections, please let me know.


From: Johannes Berg <johannes.berg@xxxxxxxxx>

commit c815797663b72e3ac1736f1886538152bc48e4af upstream.

If a P2P-Device is present and another virtual interface triggers
the connection work, the system crash because it tries to check
if the P2P-Device's netdev (which doesn't exist) is up. Skip any
wdevs that have no netdev to fix this.

Reported-by: YanBo <dreamfly281@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
net/wireless/sme.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index f2431e4..d547d2f 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -224,6 +224,9 @@ void cfg80211_conn_work(struct work_struct *work)

list_for_each_entry(wdev, &rdev->wdev_list, list) {
+ if (!wdev->netdev)
+ continue;
if (!netif_running(wdev->netdev)) {

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