From 90380fbb9865dda45a5be8085ef556f3ce203244 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky maximlevitsky@gmail.com Date: Mon, 3 Sep 2007 14:01:52 +0300 Subject: [PATCH] fix a race in dynamic power managment
codec->power_transition is supposed to be true while codec is going to be shut off if in the mean time somebody calls snd_hda_power_up, hda_power_work will not shut down the codec, but nether will clear codec->power_transition, thus it stays on forever. Fix this
Signed-off-by: Maxim Levitsky maximlevitsky@gmail.com --- pci/hda/hda_codec.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/pci/hda/hda_codec.c b/pci/hda/hda_codec.c index 46d4253..08104e2 100644 --- a/pci/hda/hda_codec.c +++ b/pci/hda/hda_codec.c @@ -2195,8 +2195,10 @@ static void hda_power_work(struct work_struct *work) struct hda_codec *codec = container_of(work, struct hda_codec, power_work.work);
- if (!codec->power_on || codec->power_count) + if (!codec->power_on || codec->power_count) { + codec->power_transition = 0; return; + }
hda_call_codec_suspend(codec); if (codec->bus->ops.pm_notify)