From: Yan Date: Mon, 29 Oct 2007 15:41:05 +0000 (-0400) Subject: Btrfs: Fix extent_map leak in extent_bmap X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c67cda1758130f3e437744c4c2ec4a7cc25564e3;p=mv-sheeva.git Btrfs: Fix extent_map leak in extent_bmap Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index c44989a1e52..e4ee980cc13 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)