diff --git a/sound/core/info.c b/sound/core/info.c
index 86366839..4188f76 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -114,6 +114,7 @@
 	int len, res;
 	int err = 0;
 
+	might_sleep();
 	if (buffer->stop || buffer->error)
 		return 0;
 	len = buffer->len - buffer->size;