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wifi: mt76: mt7915: hold dev->mt76.mutex while disabling tx worker

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[ Upstream commit 8f7152f10cb434f954aeff85ca1be9cd4d01912b ]

Prevent racing against other functions disabling the same worker

Link: https://patch.msgid.link/20240827093011.18621-17-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Fietkau
2024-08-27 11:30:04 +02:00
committed by Greg Kroah-Hartman
parent ca5ef2759d
commit 0f78947e4d
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/mediatek/mt76/mt7915/mac.c
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@@ -1409,12 +1409,14 @@ void mt7915_mac_reset_work(struct work_struct *work)
set_bit(MT76_RESET, &phy2->mt76->state);
cancel_delayed_work_sync(&phy2->mt76->mac_work);
}
mutex_lock(&dev->mt76.mutex);
mt76_worker_disable(&dev->mt76.tx_worker);
mt76_for_each_q_rx(&dev->mt76, i)
napi_disable(&dev->mt76.napi[i]);
napi_disable(&dev->mt76.tx_napi);
mutex_lock(&dev->mt76.mutex);
mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_STOPPED);