| Message ID | 40c4114a-6cb4-4abf-b013-300b598aba65@moroto.mountain (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Johannes Berg |
| Headers | show |
| Series | wifi: cfg80211: fix double lock bug in reg_wdev_chan_valid() | expand |
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 949e1fb3bec6..26f11e4746c0 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2404,11 +2404,8 @@ static bool reg_wdev_chan_valid(struct wiphy *wiphy, struct wireless_dev *wdev) case NL80211_IFTYPE_P2P_GO: case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_MESH_POINT: - wiphy_lock(wiphy); ret = cfg80211_reg_can_beacon_relax(wiphy, &chandef, iftype); - wiphy_unlock(wiphy); - if (!ret) return ret; break;
The locking was changed recently so now the caller holds the wiphy_lock() lock. Taking the lock inside the reg_wdev_chan_valid() function will lead to a deadlock. Fixes: f7e60032c661 ("wifi: cfg80211: fix locking in regulatory disconnect") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> --- net/wireless/reg.c | 3 --- 1 file changed, 3 deletions(-)