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-rw-r--r--sound/core/pcm_native.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 872887624030..605c86df71c5 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -481,11 +481,13 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
481 snd_pcm_timer_resolution_change(substream); 481 snd_pcm_timer_resolution_change(substream);
482 runtime->status->state = SNDRV_PCM_STATE_SETUP; 482 runtime->status->state = SNDRV_PCM_STATE_SETUP;
483 483
484 pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, 484 if (substream->latency_pm_qos_req) {
485 substream->latency_id); 485 pm_qos_remove_request(substream->latency_pm_qos_req);
486 substream->latency_pm_qos_req = NULL;
487 }
486 if ((usecs = period_to_usecs(runtime)) >= 0) 488 if ((usecs = period_to_usecs(runtime)) >= 0)
487 pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, 489 substream->latency_pm_qos_req = pm_qos_add_request(
488 substream->latency_id, usecs); 490 PM_QOS_CPU_DMA_LATENCY, usecs);
489 return 0; 491 return 0;
490 _error: 492 _error:
491 /* hardware might be unuseable from this time, 493 /* hardware might be unuseable from this time,
@@ -540,8 +542,8 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
540 if (substream->ops->hw_free) 542 if (substream->ops->hw_free)
541 result = substream->ops->hw_free(substream); 543 result = substream->ops->hw_free(substream);
542 runtime->status->state = SNDRV_PCM_STATE_OPEN; 544 runtime->status->state = SNDRV_PCM_STATE_OPEN;
543 pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, 545 pm_qos_remove_request(substream->latency_pm_qos_req);
544 substream->latency_id); 546 substream->latency_pm_qos_req = NULL;
545 return result; 547 return result;
546} 548}
547 549