From: Marek Szyprowski m.szyprowski@samsung.com
[ Upstream commit 9529dc167ffcdfd201b9f0eda71015f174095f7e ]
Fix this by dropping wm8994->accdet_lock while calling cancel_delayed_work_sync(&wm8994->mic_work) in wm1811_jackdet_irq().
Fixes: c0cc3f166525 ("ASoC: wm8994: Allow a delay between jack insertion and microphone detect") Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com Acked-by: Charles Keepax ckeepax@opensource.cirrus.com Link: https://lore.kernel.org/r/20221209091657.1183-1-m.szyprowski@samsung.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/wm8994.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 6dbab3fc6537..4ae7ec8d71cd 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -3711,7 +3711,12 @@ static irqreturn_t wm1811_jackdet_irq(int irq, void *data) } else { dev_dbg(component->dev, "Jack not detected\n");
+ /* Release wm8994->accdet_lock to avoid deadlock: + * cancel_delayed_work_sync() takes wm8994->mic_work internal + * lock and wm1811_mic_work takes wm8994->accdet_lock */ + mutex_unlock(&wm8994->accdet_lock); cancel_delayed_work_sync(&wm8994->mic_work); + mutex_lock(&wm8994->accdet_lock);
snd_soc_component_update_bits(component, WM8958_MICBIAS2, WM8958_MICB2_DISCH, WM8958_MICB2_DISCH);