| From 71eac9d144bec44c29340b0d9905bcba3f4128e6 Mon Sep 17 00:00:00 2001 |
| From: Johannes Berg <johannes.berg@intel.com> |
| Date: Thu, 23 May 2013 18:10:21 +0200 |
| Subject: cfg80211: check wdev->netdev in connection work |
| |
| From: Johannes Berg <johannes.berg@intel.com> |
| |
| 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@gmail.com> |
| Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
| [bwh: Backported to 3.2: adjust context] |
| Signed-off-by: Ben Hutchings <ben@decadent.org.uk> |
| Cc: Qiang Huang <h.huangqiang@huawei.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| net/wireless/sme.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| --- a/net/wireless/sme.c |
| +++ b/net/wireless/sme.c |
| @@ -222,6 +222,9 @@ void cfg80211_conn_work(struct work_stru |
| mutex_lock(&rdev->devlist_mtx); |
| |
| list_for_each_entry(wdev, &rdev->netdev_list, list) { |
| + if (!wdev->netdev) |
| + continue; |
| + |
| wdev_lock(wdev); |
| if (!netif_running(wdev->netdev)) { |
| wdev_unlock(wdev); |
