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| author | Sidong Yang <realwakka@gmail.com> | 2021-08-26 14:44:36 +0000 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-10-26 19:03:57 +0200 |
| commit | 44bee215f72f13874c0e734a0712c2e3264c0108 (patch) | |
| tree | 2bb5159f17c60fee392d487b8472aab840d6c814 /fs/btrfs/reflink.c | |
| parent | 72a69cd030823b0747cbb8fc664cf0c721da0588 (diff) | |
| download | linux-rpi-44bee215f72f13874c0e734a0712c2e3264c0108.tar.gz linux-rpi-44bee215f72f13874c0e734a0712c2e3264c0108.tar.bz2 linux-rpi-44bee215f72f13874c0e734a0712c2e3264c0108.zip | |
btrfs: reflink: initialize return value to 0 in btrfs_extent_same()
Fix a warning reported by smatch that ret could be returned without
initialized. The dedupe operations are supposed to to return 0 for a 0
length range but the caller does not pass olen == 0. To keep this
behaviour and also fix the warning initialize ret to 0.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Sidong Yang <realwakka@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/reflink.c')
| -rw-r--r-- | fs/btrfs/reflink.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/reflink.c b/fs/btrfs/reflink.c index 9b0814318e72..c71e49782e86 100644 --- a/fs/btrfs/reflink.c +++ b/fs/btrfs/reflink.c @@ -649,7 +649,7 @@ static int btrfs_extent_same_range(struct inode *src, u64 loff, u64 len, static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen, struct inode *dst, u64 dst_loff) { - int ret; + int ret = 0; u64 i, tail_len, chunk_count; struct btrfs_root *root_dst = BTRFS_I(dst)->root; |