diff options
| -rw-r--r-- | include/linux/maple_tree.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h index 7769270b85e8..6618c1512886 100644 --- a/include/linux/maple_tree.h +++ b/include/linux/maple_tree.h @@ -182,7 +182,9 @@ enum maple_type { #ifdef CONFIG_LOCKDEP typedef struct lockdep_map *lockdep_map_p; -#define mt_lock_is_held(mt) lock_is_held(mt->ma_external_lock) +#define mt_lock_is_held(mt) \ + (!(mt)->ma_external_lock || lock_is_held((mt)->ma_external_lock)) + #define mt_set_external_lock(mt, lock) \ (mt)->ma_external_lock = &(lock)->dep_map #else |