diff --git a/[refs] b/[refs]
index a369cc035664..5855219f9f30 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: eb41dab6e10332c1c9008f3cfc5b88ff1e392cb9
+refs/heads/master: e0e6ce0380e0c4de35371372bc5b6c2b02458597
diff --git a/trunk/include/sound/pcm.h b/trunk/include/sound/pcm.h
index ec006ed8cd59..ee6bc2d06803 100644
--- a/trunk/include/sound/pcm.h
+++ b/trunk/include/sound/pcm.h
@@ -56,6 +56,8 @@ struct snd_pcm_hardware {
 	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);