[ALSA] add struct snd_pcm_substream forward declaration
fixes: include/sound/pcm.h:62: warning: 'struct snd_pcm_substream' declared
inside parameter list
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index ec006ed..ee6bc2d 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -56,6 +56,8 @@
size_t fifo_size; /* fifo size in bytes */
};
+struct snd_pcm_substream;
+
struct snd_pcm_ops {
int (*open)(struct snd_pcm_substream *substream);
int (*close)(struct snd_pcm_substream *substream);