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Subject[PATCH] btrfs/extent_map: Remove unneeded variable "ret"
Date
The ret is not used after initalization, So just remove it.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
---
fs/btrfs/extent_map.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 6648d55..b48ab41 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -276,7 +276,6 @@ static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em)
int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len,
u64 gen)
{
- int ret = 0;
struct extent_map *em;
bool prealloc = false;

@@ -308,7 +307,7 @@ int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len,
free_extent_map(em);
out:
write_unlock(&tree->lock);
- return ret;
+ return 0;

}

@@ -430,14 +429,13 @@ struct extent_map *search_extent_mapping(struct extent_map_tree *tree,
*/
int remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em)
{
- int ret = 0;
-
WARN_ON(test_bit(EXTENT_FLAG_PINNED, &em->flags));
rb_erase(&em->rb_node, &tree->map);
if (!test_bit(EXTENT_FLAG_LOGGING, &em->flags))
list_del_init(&em->list);
RB_CLEAR_NODE(&em->rb_node);
- return ret;
+
+ return 0;
}

void replace_extent_mapping(struct extent_map_tree *tree,
--
1.7.12.4
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