As unpin_extent_cache never fails and Caller does not expect return value we can change return value from int to void.
Issue identified with coccicheck fs/btrfs/extent_map.c:284:5-8: Unneeded variable: "ret". Return "0" on line 316 Signed-off-by: Hariprasad Kelam <[email protected]> --- fs/btrfs/extent_map.c | 5 +---- fs/btrfs/extent_map.h | 2 +- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 9558d79..2b0eaa1 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -278,10 +278,9 @@ static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em) * to the generation that actually added the file item to the inode so we know * we need to sync this extent when we call fsync(). */ -int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len, +void unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len, u64 gen) { - int ret = 0; struct extent_map *em; bool prealloc = false; @@ -313,8 +312,6 @@ int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len, free_extent_map(em); out: write_unlock(&tree->lock); - return ret; - } void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em) diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h index 473f039..9d752ce 100644 --- a/fs/btrfs/extent_map.h +++ b/fs/btrfs/extent_map.h @@ -96,7 +96,7 @@ struct extent_map *alloc_extent_map(void); void free_extent_map(struct extent_map *em); int __init extent_map_init(void); void __cold extent_map_exit(void); -int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len, u64 gen); +void unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len, u64 gen); void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em); struct extent_map *search_extent_mapping(struct extent_map_tree *tree, u64 start, u64 len); -- 2.7.4
