From 989c3187156ad197ae473fa9d9d506eef9624f12 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 19 Nov 2012 14:14:58 +0100 Subject: ALSA: hda - Fix recursive suspend/resume call When the bus reset is performed during the suspend/resume (including the power-saving too), it calls snd_hda_suspend() and snd_hda_resume() again, and deadlocks eventually. For avoiding the recursive call, add a new flag indicating that the PM is being performed, and don't go to the bus reset mode when it's on. Reported-and-tested-by: Julian Wollrath Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.h | 1 + 1 file changed, 1 insertion(+) (limited to 'sound/pci/hda/hda_codec.h') diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 507fe8a917b6..4f4e545c0f4b 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -869,6 +869,7 @@ struct hda_codec { unsigned int power_on :1; /* current (global) power-state */ unsigned int d3_stop_clk:1; /* support D3 operation without BCLK */ unsigned int pm_down_notified:1; /* PM notified to controller */ + unsigned int in_pm:1; /* suspend/resume being performed */ int power_transition; /* power-state in transition */ int power_count; /* current (global) power refcount */ struct delayed_work power_work; /* delayed task for powerdown */ -- cgit v1.2.3