diff options
| -rw-r--r-- | include/linux/kasan.h | 16 | ||||
| -rw-r--r-- | mm/kasan/common.c | 15 |
2 files changed, 19 insertions, 12 deletions
diff --git a/include/linux/kasan.h b/include/linux/kasan.h index 8da7b7a4397a..b40ea104dd36 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -49,16 +49,20 @@ void kasan_cache_create(struct kmem_cache *cache, unsigned int *size, void kasan_poison_slab(struct page *page); void kasan_unpoison_object_data(struct kmem_cache *cache, void *object); void kasan_poison_object_data(struct kmem_cache *cache, void *object); -void *kasan_init_slab_obj(struct kmem_cache *cache, const void *object); +void * __must_check kasan_init_slab_obj(struct kmem_cache *cache, + const void *object); -void *kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags); +void * __must_check kasan_kmalloc_large(const void *ptr, size_t size, + gfp_t flags); void kasan_kfree_large(void *ptr, unsigned long ip); void kasan_poison_kfree(void *ptr, unsigned long ip); -void *kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size, - gfp_t flags); -void *kasan_krealloc(const void *object, size_t new_size, gfp_t flags); +void * __must_check kasan_kmalloc(struct kmem_cache *s, const void *object, + size_t size, gfp_t flags); +void * __must_check kasan_krealloc(const void *object, size_t new_size, + gfp_t flags); -void *kasan_slab_alloc(struct kmem_cache *s, void *object, gfp_t flags); +void * __must_check kasan_slab_alloc(struct kmem_cache *s, void *object, + gfp_t flags); bool kasan_slab_free(struct kmem_cache *s, void *object, unsigned long ip); struct kasan_cache { diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 195ca385cf7a..1144e741feb6 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -373,7 +373,8 @@ static u8 assign_tag(struct kmem_cache *cache, const void *object, bool new) #endif } -void *kasan_init_slab_obj(struct kmem_cache *cache, const void *object) +void * __must_check kasan_init_slab_obj(struct kmem_cache *cache, + const void *object) { struct kasan_alloc_meta *alloc_info; @@ -389,7 +390,8 @@ void *kasan_init_slab_obj(struct kmem_cache *cache, const void *object) return (void *)object; } -void *kasan_slab_alloc(struct kmem_cache *cache, void *object, gfp_t flags) +void * __must_check kasan_slab_alloc(struct kmem_cache *cache, void *object, + gfp_t flags) { return kasan_kmalloc(cache, object, cache->object_size, flags); } @@ -449,8 +451,8 @@ bool kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip) return __kasan_slab_free(cache, object, ip, true); } -void *kasan_kmalloc(struct kmem_cache *cache, const void *object, size_t size, - gfp_t flags) +void * __must_check kasan_kmalloc(struct kmem_cache *cache, const void *object, + size_t size, gfp_t flags) { unsigned long redzone_start; unsigned long redzone_end; @@ -482,7 +484,8 @@ void *kasan_kmalloc(struct kmem_cache *cache, const void *object, size_t size, } EXPORT_SYMBOL(kasan_kmalloc); -void *kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags) +void * __must_check kasan_kmalloc_large(const void *ptr, size_t size, + gfp_t flags) { struct page *page; unsigned long redzone_start; @@ -506,7 +509,7 @@ void *kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags) return (void *)ptr; } -void *kasan_krealloc(const void *object, size_t size, gfp_t flags) +void * __must_check kasan_krealloc(const void *object, size_t size, gfp_t flags) { struct page *page; |