diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/lockdep_types.h | 2 | ||||
| -rw-r--r-- | include/linux/mutex.h | 11 |
2 files changed, 8 insertions, 5 deletions
diff --git a/include/linux/lockdep_types.h b/include/linux/lockdep_types.h index 9f361d3ab9d9..eae115a26488 100644 --- a/include/linux/lockdep_types.h +++ b/include/linux/lockdep_types.h @@ -175,7 +175,7 @@ struct lock_class_stats { unsigned long bounces[nr_bounce_types]; }; -struct lock_class_stats lock_stats(struct lock_class *class); +void lock_stats(struct lock_class *class, struct lock_class_stats *stats); void clear_lock_stats(struct lock_class *class); #endif diff --git a/include/linux/mutex.h b/include/linux/mutex.h index a039fa8c1780..00afd341d293 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -126,11 +126,11 @@ do { \ #ifdef CONFIG_DEBUG_MUTEXES -int __devm_mutex_init(struct device *dev, struct mutex *lock); +int __must_check __devm_mutex_init(struct device *dev, struct mutex *lock); #else -static inline int __devm_mutex_init(struct device *dev, struct mutex *lock) +static inline int __must_check __devm_mutex_init(struct device *dev, struct mutex *lock) { /* * When CONFIG_DEBUG_MUTEXES is off mutex_destroy() is just a nop so @@ -141,14 +141,17 @@ static inline int __devm_mutex_init(struct device *dev, struct mutex *lock) #endif -#define devm_mutex_init(dev, mutex) \ +#define __mutex_init_ret(mutex) \ ({ \ typeof(mutex) mutex_ = (mutex); \ \ mutex_init(mutex_); \ - __devm_mutex_init(dev, mutex_); \ + mutex_; \ }) +#define devm_mutex_init(dev, mutex) \ + __devm_mutex_init(dev, __mutex_init_ret(mutex)) + /* * See kernel/locking/mutex.c for detailed documentation of these APIs. * Also see Documentation/locking/mutex-design.rst. |