ALSA: pcm: Add snd_pcm_stop_xrun() helper
Add a new helper function snd_pcm_stop_xrun() to the standard sequnce
lock/snd_pcm_stop(XRUN)/unlock by a single call, and replace the
existing open codes with this helper.
The function checks the PCM running state to prevent setting the wrong
state, too, for more safety.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
index ba40489..36f4115 100644
--- a/sound/usb/6fire/pcm.c
+++ b/sound/usb/6fire/pcm.c
@@ -679,25 +679,16 @@
void usb6fire_pcm_abort(struct sfire_chip *chip)
{
struct pcm_runtime *rt = chip->pcm;
- unsigned long flags;
int i;
if (rt) {
rt->panic = true;
- if (rt->playback.instance) {
- snd_pcm_stream_lock_irqsave(rt->playback.instance, flags);
- snd_pcm_stop(rt->playback.instance,
- SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(rt->playback.instance, flags);
- }
+ if (rt->playback.instance)
+ snd_pcm_stop_xrun(rt->playback.instance);
- if (rt->capture.instance) {
- snd_pcm_stream_lock_irqsave(rt->capture.instance, flags);
- snd_pcm_stop(rt->capture.instance,
- SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(rt->capture.instance, flags);
- }
+ if (rt->capture.instance)
+ snd_pcm_stop_xrun(rt->capture.instance);
for (i = 0; i < PCM_N_URBS; i++) {
usb_poison_urb(&rt->in_urbs[i].instance);
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index a467991..03b0744 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -391,9 +391,7 @@
usb_audio_err(ep->chip, "cannot submit urb (err = %d)\n", err);
if (ep->data_subs && ep->data_subs->pcm_substream) {
substream = ep->data_subs->pcm_substream;
- snd_pcm_stream_lock_irqsave(substream, flags);
- snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(substream, flags);
+ snd_pcm_stop_xrun(substream);
}
exit_clear:
diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c
index a1bab14..9581089 100644
--- a/sound/usb/misc/ua101.c
+++ b/sound/usb/misc/ua101.c
@@ -613,24 +613,14 @@
static void abort_alsa_capture(struct ua101 *ua)
{
- unsigned long flags;
-
- if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states)) {
- snd_pcm_stream_lock_irqsave(ua->capture.substream, flags);
- snd_pcm_stop(ua->capture.substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(ua->capture.substream, flags);
- }
+ if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
+ snd_pcm_stop_xrun(ua->capture.substream);
}
static void abort_alsa_playback(struct ua101 *ua)
{
- unsigned long flags;
-
- if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states)) {
- snd_pcm_stream_lock_irqsave(ua->playback.substream, flags);
- snd_pcm_stop(ua->playback.substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(ua->playback.substream, flags);
- }
+ if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
+ snd_pcm_stop_xrun(ua->playback.substream);
}
static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream,
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index a63330d..61d5dc2 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -272,13 +272,8 @@
for (s = 0; s < 4; s++) {
struct snd_usX2Y_substream *subs = usX2Y->subs[s];
if (subs) {
- if (atomic_read(&subs->state) >= state_PRERUNNING) {
- unsigned long flags;
-
- snd_pcm_stream_lock_irqsave(subs->pcm_substream, flags);
- snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(subs->pcm_substream, flags);
- }
+ if (atomic_read(&subs->state) >= state_PRERUNNING)
+ snd_pcm_stop_xrun(subs->pcm_substream);
for (u = 0; u < NRURBS; u++) {
struct urb *urb = subs->urb[u];
if (NULL != urb)