4.9-stable review patch. If anyone has any objections, please let me know.
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From: Takashi Iwai tiwai@suse.de
commit 9a20332ab373b1f8f947e0a9c923652b32dab031 upstream.
Some spurious calls of snd_free_pages() have been overlooked and remain in the error paths of sparc cs4231 driver code. Since runtime->dma_area is managed by the PCM core helper, we shouldn't release manually.
Drop the superfluous calls.
Reviewed-by: Takashi Sakamoto o-takashi@sakamocchi.jp Cc: stable@vger.kernel.org Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- sound/sparc/cs4231.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
--- a/sound/sparc/cs4231.c +++ b/sound/sparc/cs4231.c @@ -1146,10 +1146,8 @@ static int snd_cs4231_playback_open(stru runtime->hw = snd_cs4231_playback;
err = snd_cs4231_open(chip, CS4231_MODE_PLAY); - if (err < 0) { - snd_free_pages(runtime->dma_area, runtime->dma_bytes); + if (err < 0) return err; - } chip->playback_substream = substream; chip->p_periods_sent = 0; snd_pcm_set_sync(substream); @@ -1167,10 +1165,8 @@ static int snd_cs4231_capture_open(struc runtime->hw = snd_cs4231_capture;
err = snd_cs4231_open(chip, CS4231_MODE_RECORD); - if (err < 0) { - snd_free_pages(runtime->dma_area, runtime->dma_bytes); + if (err < 0) return err; - } chip->capture_substream = substream; chip->c_periods_sent = 0; snd_pcm_set_sync(substream);