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| author | Yan <yanzheng@21cn.com> | 2007-10-29 18:41:05 +0300 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 19:03:57 +0400 |
| commit | c67cda1758130f3e437744c4c2ec4a7cc25564e3 (patch) | |
| tree | 1bde8505d3652f857f02d16712df5294ee81e72f /fs/btrfs/extent_map.c | |
| parent | 44ec0b7179b9bce7df1080370f51314a24a00216 (diff) | |
| download | linux-c67cda1758130f3e437744c4c2ec4a7cc25564e3.tar.xz | |
Btrfs: Fix extent_map leak in extent_bmap
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_map.c')
| -rw-r--r-- | fs/btrfs/extent_map.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index c44989a1e520..e4ee980cc138 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -1924,6 +1924,7 @@ sector_t extent_bmap(struct address_space *mapping, sector_t iblock, struct inode *inode = mapping->host; u64 start = iblock << inode->i_blkbits; u64 end = start + (1 << inode->i_blkbits) - 1; + sector_t sector = 0; struct extent_map *em; em = get_extent(inode, NULL, 0, start, end, 0); @@ -1932,9 +1933,12 @@ sector_t extent_bmap(struct address_space *mapping, sector_t iblock, if (em->block_start == EXTENT_MAP_INLINE || em->block_start == EXTENT_MAP_HOLE) - return 0; + goto out; - return (em->block_start + start - em->start) >> inode->i_blkbits; + sector = (em->block_start + start - em->start) >> inode->i_blkbits; +out: + free_extent_map(em); + return sector; } static int add_lru(struct extent_map_tree *tree, struct extent_buffer *eb) |