rt5645_set_jack_detect() is usually called from snd_soc_dai_link.init() and it calls snd_soc_jack_report() from rt5645_irq_detection() if jack is inserted. snd_soc_jack_report() results in kernel hang if it is called from a context which cannot sleep. This patch makes sure snd_soc_jack_report() is called from workqueue. It can fix the kernel hang issue.

Signed-off-by: John Lin john.lin@realtek.com --- sound/soc/codecs/rt5645.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index 14b12c5..aaede45 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -2876,6 +2876,7 @@ static int rt5645_jack_detect(struct snd_soc_codec *codec, int jack_insert) }

static int rt5645_irq_detection(struct rt5645_priv *rt5645); +static irqreturn_t rt5645_irq(int irq, void *data);

int rt5645_set_jack_detect(struct snd_soc_codec *codec, struct snd_soc_jack *hp_jack, struct snd_soc_jack *mic_jack, @@ -2895,7 +2896,7 @@ int rt5645_set_jack_detect(struct snd_soc_codec *codec, regmap_update_bits(rt5645->regmap, RT5645_GEN_CTRL1, RT5645_DIG_GATE_CTRL, RT5645_DIG_GATE_CTRL); } - rt5645_irq_detection(rt5645); + rt5645_irq(0, rt5645);

return 0; }