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-rw-r--r--include/drm/i915_powerwell.h4
-rw-r--r--include/sound/core.h2
2 files changed, 4 insertions, 2 deletions
diff --git a/include/drm/i915_powerwell.h b/include/drm/i915_powerwell.h
index cfdc884405b7..2baba9996094 100644
--- a/include/drm/i915_powerwell.h
+++ b/include/drm/i915_powerwell.h
@@ -30,7 +30,7 @@
#define _I915_POWERWELL_H_
/* For use by hda_i915 driver */
-extern void i915_request_power_well(void);
-extern void i915_release_power_well(void);
+extern int i915_request_power_well(void);
+extern int i915_release_power_well(void);
#endif /* _I915_POWERWELL_H_ */
diff --git a/include/sound/core.h b/include/sound/core.h
index eedda2cdfe57..1df3f2fe5350 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -116,6 +116,8 @@ struct snd_card {
int user_ctl_count; /* count of all user controls */
struct list_head controls; /* all controls for this card */
struct list_head ctl_files; /* active control files */
+ struct mutex user_ctl_lock; /* protects user controls against
+ concurrent access */
struct snd_info_entry *proc_root; /* root for soundcard specific files */
struct snd_info_entry *proc_id; /* the card id */

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