[ALSA] aoa: fix a sparse warning
This fixes a warning sparse gives.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/aoa/soundbus/soundbus.h b/sound/aoa/soundbus/soundbus.h
index 5c27297..622cd37 100644
--- a/sound/aoa/soundbus/soundbus.h
+++ b/sound/aoa/soundbus/soundbus.h
@@ -199,4 +199,6 @@
extern int soundbus_register_driver(struct soundbus_driver *drv);
extern void soundbus_unregister_driver(struct soundbus_driver *drv);
+extern struct device_attribute soundbus_dev_attrs[];
+
#endif /* __SOUNDBUS_H */