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authorDan Carpenter <error27@gmail.com>2010-06-01 12:23:11 +0400
committerChris Mason <chris.mason@oracle.com>2010-06-11 19:46:12 +0400
commit0e4dcbef1c0c3e29f9c7f824359445d385b2649a (patch)
treecb360bec033ae7bbf237aedd84528c83f2715d47 /fs
parent836097797236fd727f82ec2f3f376ac41a430876 (diff)
downloadlinux-0e4dcbef1c0c3e29f9c7f824359445d385b2649a.tar.xz
Btrfs: uninitialized data is check_path_shared()
refs can be used with uninitialized data if btrfs_lookup_extent_info() fails on the first pass through the loop. In the original code if that happens then check_path_shared() probably returns 1, this patch changes it to return 1 for safety. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d999c538cdc2..f08427c70a78 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2673,7 +2673,7 @@ static int check_path_shared(struct btrfs_root *root,
struct extent_buffer *eb;
int level;
int ret;
- u64 refs;
+ u64 refs = 1;
for (level = 0; level < BTRFS_MAX_LEVEL; level++) {
if (!path->nodes[level])