| Message ID | 20210523090920.15345-5-tiwai@suse.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ALSA: Prep work for PCI rescan support | expand |
diff --git a/sound/core/control.c b/sound/core/control.c index 7fe901384c9c..a25c0d64d104 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -1817,11 +1817,7 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg case SNDRV_CTL_IOCTL_POWER: return -ENOPROTOOPT; case SNDRV_CTL_IOCTL_POWER_STATE: -#ifdef CONFIG_PM - return put_user(card->power_state, ip) ? -EFAULT : 0; -#else return put_user(SNDRV_CTL_POWER_D0, ip) ? -EFAULT : 0; -#endif } down_read(&snd_ioctl_rwsem); list_for_each_entry(p, &snd_control_ioctls, list) {
Long long time ago, before the proper PM framework was introduced, it was still possible to reach SNDRV_CTL_IOCTL_POWER ioctl during the power off state. This ioctl existed as a main control for the suspend resume state in the past, but the feature was already dropped along with the standard PM framework. Now the read part, SNDRV_IOCTL_POWER_STATE ioctl, returns practically always D0, and we can do some minor optimization there. Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/core/control.c | 4 ---- 1 file changed, 4 deletions(-)