ASoC: Fix pxa2xx-pcm checks for invalid DMA channels
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>
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
index c670d08..53b9fb1 100644
--- a/sound/soc/pxa/pxa2xx-pcm.c
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -61,9 +61,9 @@
__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;