linux-kernel - [PATCH] fs: btrfs: extent_map: removed unneeded variable

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Message-Id: <20210629085025.98437-1-lijian_8010a29@163.com>
Date:   Tue, 29 Jun 2021 08:50:25 +0000
From:   lijian_8010a29@....com
To:     clm@...com, josef@...icpanda.com, dsterba@...e.com
Cc:     linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        lijian <lijian@...ong.com>
Subject: [PATCH] fs: btrfs: extent_map: removed unneeded variable

From: lijian <lijian@...ong.com>

removed unneeded variable 'ret'.

Signed-off-by: lijian <lijian@...ong.com>
---
 fs/btrfs/extent_map.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 4a8e02f7b6c7..70d3e76e30c5 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -296,7 +296,6 @@ 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;
 
@@ -328,8 +327,7 @@ 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;
 }
 
 void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em)
-- 
2.17.1