Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 18d8362d authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

mutex_lock_interruptible(): add __must_check 



It's not sane to use mutex_lock_interruptible() and to then ignore the result.

Ditto down_interruptible(), but I'm lazy.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ae030e43

include/linux/mutex.h

+3 −2
Original line number Diff line number Diff line
@@ -121,11 +121,12 @@ static inline int fastcall mutex_is_locked(struct mutex *lock) 
 * Also see Documentation/mutex-design.txt.

 */

extern void fastcall mutex_lock(struct mutex *lock);

extern int fastcall mutex_lock_interruptible(struct mutex *lock);

extern int __must_check fastcall mutex_lock_interruptible(struct mutex *lock);



#ifdef CONFIG_DEBUG_LOCK_ALLOC

extern void mutex_lock_nested(struct mutex *lock, unsigned int subclass);

extern int mutex_lock_interruptible_nested(struct mutex *lock, unsigned int subclass);

extern int __must_check mutex_lock_interruptible_nested(struct mutex *lock,

					unsigned int subclass);

#else

# define mutex_lock_nested(lock, subclass) mutex_lock(lock)

# define mutex_lock_interruptible_nested(lock, subclass) mutex_lock_interruptible(lock)