[PATCH] severing poll.h -> mm.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/sound/oss/cs46xx.c b/sound/oss/cs46xx.c
index b1c5d82..147c8a9 100644
--- a/sound/oss/cs46xx.c
+++ b/sound/oss/cs46xx.c
@@ -91,6 +91,7 @@
 #include <linux/poll.h>
 #include <linux/ac97_codec.h>
 #include <linux/mutex.h>
+#include <linux/mm.h>
 
 #include <asm/io.h>
 #include <asm/dma.h>