[PATCH] mt76: mt7921s: fix possible sdio deadlock in command fail

Deren Wu Deren.Wu at mediatek.com
Sat Jun 11 18:59:47 PDT 2022


From: Deren Wu <deren.wu at mediatek.com>

Move sdio_release_host() to final resource handing

Fixes: b12deb5e86fa ("mt76: mt7921s: fix mt7921s_mcu_[fw|drv]_pmctrl")
Reported-by: YN Chen <YN.Chen at mediatek.com>
Signed-off-by: Deren Wu <deren.wu at mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c
index 54a5c712a3c3..1856d677fff4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c
@@ -156,9 +156,9 @@ int mt7921s_mcu_fw_pmctrl(struct mt7921_dev *dev)
 
 	err = readx_poll_timeout(mt76s_read_pcr, &dev->mt76, status,
 				 !(status & WHLPCR_IS_DRIVER_OWN), 2000, 1000000);
+err:
 	sdio_release_host(func);
 
-err:
 	if (err < 0) {
 		dev_err(dev->mt76.dev, "firmware own failed\n");
 		clear_bit(MT76_STATE_PM, &mphy->state);
-- 
2.18.0




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