From 113249c0a943849326e437dedcd62b2128bc06b1 Mon Sep 17 00:00:00 2001 From: lars Date: Mon, 22 Mar 2010 18:57:50 +0000 Subject: [PATCH] [xburst] sound jz4740_pcm: Set dma channel to NULL after it has been freed, because hw_free can be called multiple times aswell. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20373 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c index 4a4de195a..3ccc652a0 100644 --- a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c @@ -136,8 +136,10 @@ static int jz4740_pcm_hw_free(struct snd_pcm_substream *substream) struct jz4740_runtime_data *prtd = substream->runtime->private_data; snd_pcm_set_runtime_buffer(substream, NULL); - if (prtd->dma) + if (prtd->dma) { jz4740_dma_free(prtd->dma); + prtd->dma = NULL; + } return 0; } -- 2.20.1