[ALSA] Cleanup unused argument for snd_power_wait()

Removed the unused file argument of snd_power_wait().
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/core.h

@@ -170,7 +170,7 @@ static inline void snd_power_change_state(struct snd_card *card, unsigned int st
 }
 
 /* init.c */
-int snd_power_wait(struct snd_card *card, unsigned int power_state, struct file *file);
+int snd_power_wait(struct snd_card *card, unsigned int power_state);
 
 #else /* ! CONFIG_PM */
 

sound/core/control.c

@@ -664,7 +664,7 @@ static int snd_ctl_elem_info_user(struct snd_ctl_file *ctl,
 	if (copy_from_user(&info, _info, sizeof(info)))
 		return -EFAULT;
 	snd_power_lock(ctl->card);
-	result = snd_power_wait(ctl->card, SNDRV_CTL_POWER_D0, NULL);
+	result = snd_power_wait(ctl->card, SNDRV_CTL_POWER_D0);
 	if (result >= 0)
 		result = snd_ctl_elem_info(ctl, &info);
 	snd_power_unlock(ctl->card);
@@ -718,7 +718,7 @@ static int snd_ctl_elem_read_user(struct snd_card *card,
 		return -EFAULT;
 	}
 	snd_power_lock(card);
-	result = snd_power_wait(card, SNDRV_CTL_POWER_D0, NULL);
+	result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 	if (result >= 0)
 		result = snd_ctl_elem_read(card, control);
 	snd_power_unlock(card);
@@ -783,7 +783,7 @@ static int snd_ctl_elem_write_user(struct snd_ctl_file *file,
 	}
 	card = file->card;
 	snd_power_lock(card);
-	result = snd_power_wait(card, SNDRV_CTL_POWER_D0, NULL);
+	result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 	if (result >= 0)
 		result = snd_ctl_elem_write(card, file, control);
 	snd_power_unlock(card);

sound/core/control_compat.c

@@ -109,7 +109,7 @@ static int snd_ctl_elem_info_compat(struct snd_ctl_file *ctl,
 		goto error;
 
 	snd_power_lock(ctl->card);
-	err = snd_power_wait(ctl->card, SNDRV_CTL_POWER_D0, NULL);
+	err = snd_power_wait(ctl->card, SNDRV_CTL_POWER_D0);
 	if (err >= 0)
 		err = snd_ctl_elem_info(ctl, data);
 	snd_power_unlock(ctl->card);
@@ -294,7 +294,7 @@ static int snd_ctl_elem_read_user_compat(struct snd_card *card,
 		goto error;
 
 	snd_power_lock(card);
-	err = snd_power_wait(card, SNDRV_CTL_POWER_D0, NULL);
+	err = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 	if (err >= 0)
 		err = snd_ctl_elem_read(card, data);
 	snd_power_unlock(card);
@@ -320,7 +320,7 @@ static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file,
 		goto error;
 
 	snd_power_lock(card);
-	err = snd_power_wait(card, SNDRV_CTL_POWER_D0, NULL);
+	err = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 	if (err >= 0)
 		err = snd_ctl_elem_write(card, file, data);
 	snd_power_unlock(card);

sound/core/init.c

@@ -722,13 +722,12 @@ int snd_card_file_remove(struct snd_card *card, struct file *file)
  *  snd_power_wait - wait until the power-state is changed.
  *  @card: soundcard structure
  *  @power_state: expected power state
- *  @file: file structure for the O_NONBLOCK check (optional)
  *
  *  Waits until the power-state is changed.
  *
  *  Note: the power lock must be active before call.
  */
-int snd_power_wait(struct snd_card *card, unsigned int power_state, struct file *file)
+int snd_power_wait(struct snd_card *card, unsigned int power_state)
 {
 	wait_queue_t wait;
 	int result = 0;
@@ -745,12 +744,6 @@ int snd_power_wait(struct snd_card *card, unsigned int power_state, struct file
 		}
 		if (snd_power_get_state(card) == power_state)
 			break;
-#if 0 /* block all devices */
-		if (file && (file->f_flags & O_NONBLOCK)) {
-			result = -EAGAIN;
-			break;
-		}
-#endif
 		set_current_state(TASK_UNINTERRUPTIBLE);
 		snd_power_unlock(card);
 		schedule_timeout(30 * HZ);

sound/core/pcm_native.c

@@ -1170,7 +1170,7 @@ static int snd_pcm_resume(struct snd_pcm_substream *substream)
 	int res;
 
 	snd_power_lock(card);
-	if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile)) >= 0)
+	if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0)
 		res = snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0);
 	snd_power_unlock(card);
 	return res;
@@ -1198,7 +1198,7 @@ static int snd_pcm_xrun(struct snd_pcm_substream *substream)
 
 	snd_power_lock(card);
 	if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
-		result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile);
+		result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 		if (result < 0)
 			goto _unlock;
 	}
@@ -1319,7 +1319,7 @@ int snd_pcm_prepare(struct snd_pcm_substream *substream)
 	struct snd_card *card = substream->pcm->card;
 
 	snd_power_lock(card);
-	if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile)) >= 0)
+	if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0)
 		res = snd_pcm_action_nonatomic(&snd_pcm_action_prepare, substream, 0);
 	snd_power_unlock(card);
 	return res;
@@ -1410,7 +1410,7 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream)
 
 	snd_power_lock(card);
 	if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
-		result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile);
+		result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 		if (result < 0) {
 			snd_power_unlock(card);
 			return result;
@@ -1533,7 +1533,7 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream)
 
 	snd_power_lock(card);
 	if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) {
-		result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile);
+		result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 		if (result < 0)
 			goto _unlock;
 	}