[PATCH v2 1/4] ASoC: rt5668: cancel jack_detect_work on component removal

[Tristan Madani <tristmd@gmail.com>]

The rt5668 codec driver initializes two delayed works but only
jd_check_work is cancelled during removal. The jack_detect_work is
never cancelled, which can lead to the work handler accessing freed
memory if the device is unbound while the work is pending.

Add cancel_delayed_work_sync() for jack_detect_work in
rt5668_remove().

Fixes: d59fb28562232 ("ASoC: rt5668: add rt5668B codec driver")
Cc: stable@vger.kernel.org
Signed-off-by: Tristan Madani <tristmd@gmail.com>
---
Changes in v2:
- Resend as part of unified series (no code changes from v1)

 sound/soc/codecs/rt5668.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/rt5668.c b/sound/soc/codecs/rt5668.c
index 4154bad276101..0e6594c327311 100644
--- a/sound/soc/codecs/rt5668.c
+++ b/sound/soc/codecs/rt5668.c
@@ -2223,6 +2223,8 @@ static void rt5668_remove(struct snd_soc_component *component)
 {
 	struct rt5668_priv *rt5668 = snd_soc_component_get_drvdata(component);
 
+	cancel_delayed_work_sync(&rt5668->jack_detect_work);
+
 	rt5668_reset(rt5668->regmap);
 }
 
-- 
2.47.3