From: Takashi Iwai Date: Fri, 1 Jan 2021 08:38:52 +0000 (+0100) Subject: ALSA: hda/hdmi: Fix incorrect mutex unlock in silent_stream_disable() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3d5c5fdcee0f9a94deb0472e594706018b00aa31;p=linux.git ALSA: hda/hdmi: Fix incorrect mutex unlock in silent_stream_disable() The silent_stream_disable() function introduced by the commit b1a5039759cb ("ALSA: hda/hdmi: fix silent stream for first playback to DP") takes the per_pin->lock mutex, but it unlocks the wrong one, spec->pcm_lock, which causes a deadlock. This patch corrects it. Fixes: b1a5039759cb ("ALSA: hda/hdmi: fix silent stream for first playback to DP") Reported-by: Jan Alexander Steffens (heftig) Cc: Acked-by: Kai Vehmanen Link: https://lore.kernel.org/r/20210101083852.12094-1-tiwai@suse.de Signed-off-by: Takashi Iwai --- diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 1e4a4b83fbf6f..74d246a0dc6de 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1733,7 +1733,7 @@ static void silent_stream_disable(struct hda_codec *codec, per_pin->silent_stream = false; unlock_out: - mutex_unlock(&spec->pcm_lock); + mutex_unlock(&per_pin->lock); } /* update ELD and jack state via audio component */