diff options
| author |   Takashi Iwai <tiwai@suse.de> | 2005-11-17 16:00:01 +0100 |
|---|---|---|
| committer |   Jaroslav Kysela <perex@suse.cz> | 2006-01-03 12:20:28 +0100 |
| commit | e26e7545e9542425f140cb4c605a7ab5a3b13e00 (patch) | |
| tree | adbbb875ffba2bf48f18aa962cb0d260314744a5 | |
| parent | [ALSA] pcm - NULL check in snd_pcm_suspend*() (diff) | |
| download | linux-dev-e26e7545e9542425f140cb4c605a7ab5a3b13e00.tar.xz linux-dev-e26e7545e9542425f140cb4c605a7ab5a3b13e00.zip | |
[ALSA] ac97 - NULL check in snd_ac97_suspend/resume
Modules: AC97 Codec
Add NULL check in snd_ac97_suspend() and snd_ac97_resume() so that
the caller doesn't have to do it by itself.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/pci/ac97/ac97_codec.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 9faeaefc8e6e..abc83fa85bcd 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -2186,6 +2186,8 @@ static void snd_ac97_powerdown(struct snd_ac97 *ac97) */ void snd_ac97_suspend(struct snd_ac97 *ac97) { + if (! ac97) + return; if (ac97->build_ops->suspend) ac97->build_ops->suspend(ac97); snd_ac97_powerdown(ac97); @@ -2242,6 +2244,9 @@ void snd_ac97_resume(struct snd_ac97 *ac97) { unsigned long end_time; + if (! ac97) + return; + if (ac97->bus->ops->reset) { ac97->bus->ops->reset(ac97); goto __reset_ready; |