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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-04-13 06:00:45 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-04-15 17:05:27 +0100 |
| commit | d1acba2fdebb449bad01e7cf77a9f9730dfaca6e (patch) | |
| tree | 8253edf1b2a10815ef566929f4f98ad53c29b538 /sound | |
| parent | 7667428f80526d908124e0647ac5dbe3dad88900 (diff) | |
| download | linux-d1acba2fdebb449bad01e7cf77a9f9730dfaca6e.tar.gz linux-d1acba2fdebb449bad01e7cf77a9f9730dfaca6e.tar.bz2 linux-d1acba2fdebb449bad01e7cf77a9f9730dfaca6e.zip | |
ASoC: rsnd: set dmaen->chan = NULL when error case
rsnd_dmaen_quit() is assuming dmaen->chan is NULL if it failed
to get DMAEngine channel. but, current dmaen->chan might have
error value when error case (this driver is checking it by IS_ERR_OR_NULL())
This patch makes sure dmaen->chan is NULL when error case.
Otherwise, it will contact to unknown address in rsnd_dmaen_quit()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/sh/rcar/dma.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index ac3756f6af60..144308f15fb3 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -156,6 +156,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, (void *)id); } if (IS_ERR_OR_NULL(dmaen->chan)) { + dmaen->chan = NULL; dev_err(dev, "can't get dma channel\n"); goto rsnd_dma_channel_err; } |