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ASoC: rsnd: tidyup rsnd_io_to_runtime() macro 

Avoid NULL pointer access

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2014-11-27 08:06:25 +00:00 committed by Mark Brown
parent 170a2497a2
commit 0cf7718520
1 changed files with 2 additions and 1 deletions
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3
sound/soc/sh/rcar/rsnd.h
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@ -303,7 +303,8 @@ struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
#define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
#define rsnd_io_to_runtime(io) ((io)->substream->runtime)
#define rsnd_io_to_runtime(io) ((io)->substream ? \
(io)->substream->runtime : NULL)
void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);