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| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2024-02-11 12:58:34 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-02-11 16:58:49 +0000 |
| commit | 6ef5d5b92f7117b324efaac72b3db27ae8bb3082 (patch) | |
| tree | 4361fd86c00982dc5f2eb54f6629a6f180a70b20 /sound/soc | |
| parent | 727b943263dc98a7aca355cc0302158218f71543 (diff) | |
| download | linux-stable-6ef5d5b92f7117b324efaac72b3db27ae8bb3082.tar.gz linux-stable-6ef5d5b92f7117b324efaac72b3db27ae8bb3082.tar.bz2 linux-stable-6ef5d5b92f7117b324efaac72b3db27ae8bb3082.zip | |
ASoC: rt5645: Fix deadlock in rt5645_jack_detect_work()
There is a path in rt5645_jack_detect_work(), where rt5645->jd_mutex
is left locked forever. That may lead to deadlock
when rt5645_jack_detect_work() is called for the second time.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: cdba4301adda ("ASoC: rt5650: add mutex to avoid the jack detection failure")
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Link: https://lore.kernel.org/r/1707645514-21196-1-git-send-email-khoroshilov@ispras.ru
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/rt5645.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index 5150d6ee3748..0cc2fa131d48 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -3317,6 +3317,7 @@ static void rt5645_jack_detect_work(struct work_struct *work) report, SND_JACK_HEADPHONE); snd_soc_jack_report(rt5645->mic_jack, report, SND_JACK_MICROPHONE); + mutex_unlock(&rt5645->jd_mutex); return; case 4: val = snd_soc_component_read(rt5645->component, RT5645_A_JD_CTRL1) & 0x0020; |