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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2012-09-02 15:44:51 +0200
committerChris Mason <chris.mason@fusionio.com>2012-10-01 21:19:09 +0200
commitcf93dccea67ad8f5e0d9163c6a0a584550bbd7cd (patch)
tree848f4ec0cc99396d468cbc4addc2707b1064b364 /fs/btrfs/scrub.c
parentBtrfs: btrfs_drop_extent_cache should never fail (diff)
downloadlinux-cf93dccea67ad8f5e0d9163c6a0a584550bbd7cd.tar.xz
linux-cf93dccea67ad8f5e0d9163c6a0a584550bbd7cd.zip
Btrfs: fix possible memory leak in scrub_setup_recheck_block()
bbio has been malloced in btrfs_map_block() and should be freed before leaving from the error handling cases. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Diffstat (limited to 'fs/btrfs/scrub.c')
-rw-r--r--fs/btrfs/scrub.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index b223620cd5a6..4e9eafe01c55 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1029,6 +1029,7 @@ static int scrub_setup_recheck_block(struct scrub_dev *sdev,
spin_lock(&sdev->stat_lock);
sdev->stat.malloc_errors++;
spin_unlock(&sdev->stat_lock);
+ kfree(bbio);
return -ENOMEM;
}
sblock->page_count++;