From: Lorenzo Bianconi lorenzo@kernel.org
[ Upstream commit 271fa685365842962f56651c9d1a33a0d0d3b30b ]
Always wake the device up before dumping the single_sku power table otherwise the device can hang.
Fixes: ea29acc97c555 ("mt76: mt7921: add dumping Tx power table") Signed-off-by: Lorenzo Bianconi lorenzo@kernel.org Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c index 6ee423dd4027..6602903c0d02 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c @@ -184,7 +184,10 @@ mt7921_txpwr(struct seq_file *s, void *data) struct mt7921_txpwr txpwr; int ret;
+ mt7921_mutex_acquire(dev); ret = mt7921_get_txpwr_info(dev, &txpwr); + mt7921_mutex_release(dev); + if (ret) return ret;