From: Jules Irenge <jbi.octave@xxxxxxxxx> Subject: mm/slub: add missing annotation for put_map() Sparse reports a warning at put_map()() warning: context imbalance in put_map() - unexpected unlock The root cause is the missing annotation at put_map() Add the missing __releases(&object_map_lock) annotation Link: http://lkml.kernel.org/r/20200214204741.94112-10-jbi.octave@xxxxxxxxx Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/slub.c~mm-slub-add-missing-annotation-for-put_map +++ a/mm/slub.c @@ -466,7 +466,7 @@ static unsigned long *get_map(struct kme return object_map; } -static void put_map(unsigned long *map) +static void put_map(unsigned long *map) __releases(&object_map_lock) { VM_BUG_ON(map != object_map); lockdep_assert_held(&object_map_lock); _
