From af3964265c901e751d88deb45b233fea700e3b41 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 27 Jun 2022 12:49:03 +0200 Subject: [PATCH] wifi: nl80211: acquire wdev mutex for dump_survey At least the quantenna driver calls wdev_chandef() here which now requires the lock, so acquire it. Fixes: e6f13cef679e ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b50ba18035959..886d964242ae8 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -10233,7 +10233,9 @@ static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) } while (1) { + wdev_lock(wdev); res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); + wdev_unlock(wdev); if (res == -ENOENT) break; if (res) -- 2.39.5