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authorWang Shilong <wangsl-fnst@cn.fujitsu.com>2013-05-08 08:10:25 +0000
committerJosef Bacik <jbacik@fusionio.com>2013-05-17 21:40:17 -0400
commitc16c2e2e51c2f0951fffa73c343b8fcb641108ba (patch)
tree4d4fe921e979bf12c98f488362afa45c5cd18429
parent49688107527a24b0ed3780576257a1225902180b (diff)
downloadlinux-c16c2e2e51c2f0951fffa73c343b8fcb641108ba.tar.bz2
Btrfs: fix possible memory leak in the find_parent_nodes()
In the find_parent_nodes(), if read_tree_block() fails, we can not return directly, we should free some allocated memory otherwise memory leak happens. Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
-rw-r--r--fs/btrfs/backref.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index b4fb41558111..290e347b6db3 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -918,7 +918,8 @@ again:
ref->parent, bsz, 0);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
- return -EIO;
+ ret = -EIO;
+ goto out;
}
ret = find_extent_in_eb(eb, bytenr,
*extent_item_pos, &eie);