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ASoC: Fix pxa2xx-pcm checks for invalid DMA channels

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Set the invalid dma channel to -1 (and check properly for it) in
pxa2xx_pcm_hw_free().  Was assuming 0 is an invalid channel number but 0
is a valid pxa dma channel num.

Signed-off-by: stephen <stephen.ware@eqware.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Stephen Ware 2008-12-31 14:39:23 -08:00 committed by Mark Brown
parent 276c62225a
commit 9bef6489d7
1 changed files with 2 additions and 2 deletions
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4
sound/soc/pxa/pxa2xx-pcm.c
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@ -61,9 +61,9 @@ static int pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream)
__pxa2xx_pcm_hw_free(substream);
if (prtd->dma_ch) {
if (prtd->dma_ch >= 0) {
pxa_free_dma(prtd->dma_ch);
prtd->dma_ch = 0;
prtd->dma_ch = -1;
}
return 0;