Sparse reports a warning at migrate_write_unlock() warning: context imbalance in migrate_write_unlock() - unexpected unlock The root cause is the missing annotation at migrate_write_unlock() Add the missing __releases(&zspage->lock) Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx> --- mm/zsmalloc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 7ec69a1140cf..cb5541d06823 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -1852,6 +1852,7 @@ static void migrate_write_lock(struct zspage *zspage) } static void migrate_write_unlock(struct zspage *zspage) + __releases(&zspage->lock) { write_unlock(&zspage->lock); } -- 2.24.1