Thread (840 messages) 840 messages, 15 authors, 2021-07-20
STALE1806d

[PATCH 5.13 471/800] wil6210: remove erroneous wiphy locking

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-12 08:42:04
Also in: lkml
Subsystem: atheros ath generic utilities, the rest, wilocity wil6210 wireless driver · Maintainers: Jeff Johnson, Linus Torvalds

From: Johannes Berg <redacted>

[ Upstream commit 8f78caa2264ece71c2e207cba023f28ab6665138 ]

We already hold the wiphy lock in all cases when we get
here, so this would deadlock, remove the erroneous locking.

Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver")
Signed-off-by: Johannes Berg <redacted>
Signed-off-by: Kalle Valo <redacted>
Link: https://lore.kernel.org/r/20210426212929.83f1de07c2cd.I630a2a00eff185ba0452324b3d3f645e01128a95@changeid (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wil6210/cfg80211.c | 2 --
 1 file changed, 2 deletions(-)
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 6746fd206d2a..1ff2679963f0 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -2842,9 +2842,7 @@ void wil_p2p_wdev_free(struct wil6210_priv *wil)
 	wil->radio_wdev = wil->main_ndev->ieee80211_ptr;
 	mutex_unlock(&wil->vif_mutex);
 	if (p2p_wdev) {
-		wiphy_lock(wil->wiphy);
 		cfg80211_unregister_wdev(p2p_wdev);
-		wiphy_unlock(wil->wiphy);
 		kfree(p2p_wdev);
 	}
 }
-- 
2.30.2


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