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cfg80211: check wdev->netdev in connection work

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commit c815797663 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>
This commit is contained in:
Johannes Berg 2013-05-23 18:10:21 +02:00 committed by Greg Kroah-Hartman
parent 77dcc24b5b
commit 377929f225
1 changed files with 3 additions and 0 deletions
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3
net/wireless/sme.c
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@ -222,6 +222,9 @@ void cfg80211_conn_work(struct work_struct *work)
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);