cfg80211: fix deadlocks in autodisconnect work

commit 5a128a088a2ab0b5190eeb232b5aa0b1017a0317 upstream.

Use methods which do not try to acquire the wdev lock themselves.

Cc: stable@vger.kernel.org
Fixes: 37b1c004685a3 ("cfg80211: Support all iftypes in autodisconnect_wk")
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20200108115536.2262-1-markus.theil@tu-ilmenau.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 7a6c38d..d32a2ec 100644 (file)
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -1307,14 +1307,14 @@ void cfg80211_autodisconnect_wk(struct work_struct *work)
        if (wdev->conn_owner_nlportid) {
                switch (wdev->iftype) {
                case NL80211_IFTYPE_ADHOC:
-                       cfg80211_leave_ibss(rdev, wdev->netdev, false);
+                       __cfg80211_leave_ibss(rdev, wdev->netdev, false);
                        break;
                case NL80211_IFTYPE_AP:
                case NL80211_IFTYPE_P2P_GO:
-                       cfg80211_stop_ap(rdev, wdev->netdev, false);
+                       __cfg80211_stop_ap(rdev, wdev->netdev, false);
                        break;
                case NL80211_IFTYPE_MESH_POINT:
-                       cfg80211_leave_mesh(rdev, wdev->netdev);
+                       __cfg80211_leave_mesh(rdev, wdev->netdev);
                        break;
                case NL80211_IFTYPE_STATION:
                case NL80211_IFTYPE_P2P_CLIENT: