From 84ac9bb12e8158e1affad4ae7718eb653fa5e36d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 19 Jan 2015 15:15:21 +0100 Subject: [PATCH] ALSA: line6: Drop superfluous irqsave/irqrestore in PCM trigger callback The PCM trigger callback is guaranteed to be called already in spinlock / irq-disabled context. Tested-by: Chris Rorvick Signed-off-by: Takashi Iwai --- sound/usb/line6/pcm.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c index 932cc7e194e2..edab3cd7c048 100644 --- a/sound/usb/line6/pcm.c +++ b/sound/usb/line6/pcm.c @@ -227,9 +227,8 @@ int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); struct snd_pcm_substream *s; int err; - unsigned long flags; - spin_lock_irqsave(&line6pcm->lock_trigger, flags); + spin_lock(&line6pcm->lock_trigger); clear_bit(LINE6_INDEX_PREPARED, &line6pcm->flags); snd_pcm_group_for_each_entry(s, substream) { @@ -240,8 +239,7 @@ int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) err = snd_line6_playback_trigger(line6pcm, cmd); if (err < 0) { - spin_unlock_irqrestore(&line6pcm->lock_trigger, - flags); + spin_unlock(&line6pcm->lock_trigger); return err; } @@ -251,8 +249,7 @@ int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) err = snd_line6_capture_trigger(line6pcm, cmd); if (err < 0) { - spin_unlock_irqrestore(&line6pcm->lock_trigger, - flags); + spin_unlock(&line6pcm->lock_trigger); return err; } @@ -264,7 +261,7 @@ int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) } } - spin_unlock_irqrestore(&line6pcm->lock_trigger, flags); + spin_unlock(&line6pcm->lock_trigger); return 0; } -- 2.20.1