[PATCH mt76 3/4] wifi: mt76: Move mt76_abort_scan out of mt76_reset_device()
Lorenzo Bianconi
lorenzo at kernel.org
Fri Nov 14 05:16:23 PST 2025
Move mt76_abort_scan routine out of mt76_reset_device() in order to
avoid a possible deadlock since mt76_reset_device routine is running
with mt76 mutex help and mt76_abort_scan_complete() can grab mt76 mutex
in some cases.
Fixes: b36d55610215a ("wifi: mt76: abort scan/roc on hw restart")
Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
---
drivers/net/wireless/mediatek/mt76/mac80211.c | 2 --
drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 2 ++
drivers/net/wireless/mediatek/mt76/mt7996/mac.c | 2 ++
3 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index 5ceaf78c9ea064bf898c347c611a7ccdf9cb9ebc..5e75861bf6f990dc5745b81224faf705395e894d 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -847,8 +847,6 @@ void mt76_reset_device(struct mt76_dev *dev)
}
rcu_read_unlock();
- mt76_abort_scan(dev);
-
INIT_LIST_HEAD(&dev->wcid_list);
INIT_LIST_HEAD(&dev->sta_poll_list);
dev->vif_mask = 0;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 1c0d310146d63bc39357d604b549c83e37c8da35..5caf818e8283438ee3c79124384636cbdd641780 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -1451,6 +1451,8 @@ mt7915_mac_full_reset(struct mt7915_dev *dev)
if (ext_phy)
cancel_delayed_work_sync(&ext_phy->mac_work);
+ mt76_abort_scan(&dev->mt76);
+
mutex_lock(&dev->mt76.mutex);
for (i = 0; i < 10; i++) {
if (!mt7915_mac_restart(dev))
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
index 1fac3815c523c05643705b9b6b7263a7fdf2e3a4..6fd732a924ab3a4bdc9224b8fd3cc53438e1db60 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
@@ -2420,6 +2420,8 @@ mt7996_mac_full_reset(struct mt7996_dev *dev)
mt7996_for_each_phy(dev, phy)
cancel_delayed_work_sync(&phy->mt76->mac_work);
+ mt76_abort_scan(&dev->mt76);
+
mutex_lock(&dev->mt76.mutex);
for (i = 0; i < 10; i++) {
if (!mt7996_mac_restart(dev))
--
2.51.1
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