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| author | James Bottomley <James.Bottomley@suse.de> | 2010-07-05 22:53:06 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2010-07-19 02:00:34 +0200 |
| commit | 82f682514a5df89ffb3890627eebf0897b7a84ec (patch) | |
| tree | 27a3dba7a179102ac5bfdd5935679bd2abd3f70f /sound | |
| parent | 5f279845f9d684661563894d44729a0c706375b4 (diff) | |
| download | linux-3.10-82f682514a5df89ffb3890627eebf0897b7a84ec.tar.gz linux-3.10-82f682514a5df89ffb3890627eebf0897b7a84ec.tar.bz2 linux-3.10-82f682514a5df89ffb3890627eebf0897b7a84ec.zip | |
pm_qos: Get rid of the allocation in pm_qos_add_request()
All current users of pm_qos_add_request() have the ability to supply
the memory required by the pm_qos routines, so make them do this and
eliminate the kmalloc() with pm_qos_add_request(). This has the
double benefit of making the call never fail and allowing it to be
called from atomic context.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: mark gross <markgross@thegnar.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/pcm_native.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 303ac04ff6e..a3b2a647924 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -451,13 +451,11 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream, snd_pcm_timer_resolution_change(substream); runtime->status->state = SNDRV_PCM_STATE_SETUP; - if (substream->latency_pm_qos_req) { - pm_qos_remove_request(substream->latency_pm_qos_req); - substream->latency_pm_qos_req = NULL; - } + if (pm_qos_request_active(&substream->latency_pm_qos_req)) + pm_qos_remove_request(&substream->latency_pm_qos_req); if ((usecs = period_to_usecs(runtime)) >= 0) - substream->latency_pm_qos_req = pm_qos_add_request( - PM_QOS_CPU_DMA_LATENCY, usecs); + pm_qos_add_request(&substream->latency_pm_qos_req, + PM_QOS_CPU_DMA_LATENCY, usecs); return 0; _error: /* hardware might be unuseable from this time, @@ -512,8 +510,7 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream) if (substream->ops->hw_free) result = substream->ops->hw_free(substream); runtime->status->state = SNDRV_PCM_STATE_OPEN; - pm_qos_remove_request(substream->latency_pm_qos_req); - substream->latency_pm_qos_req = NULL; + pm_qos_remove_request(&substream->latency_pm_qos_req); return result; } |