->poll() methods should return __poll_t

The most common place to find POLL... bitmaps: return values
of ->poll() and its subsystem counterparts.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/sound/info.h b/include/sound/info.h
index 67390ee..becdf66 100644
--- a/include/sound/info.h
+++ b/include/sound/info.h
@@ -62,7 +62,7 @@ struct snd_info_entry_ops {
 	loff_t (*llseek)(struct snd_info_entry *entry,
 			 void *file_private_data, struct file *file,
 			 loff_t offset, int orig);
-	unsigned int (*poll)(struct snd_info_entry *entry,
+	__poll_t (*poll)(struct snd_info_entry *entry,
 			     void *file_private_data, struct file *file,
 			     poll_table *wait);
 	int (*ioctl)(struct snd_info_entry *entry, void *file_private_data,