From: Josef Bacik <josef@xxxxxxxxxxxxxx>
commit c5f4987e86f6692fdb12533ea1fc7a7bb98e555a upstream.
Coverity caught a case where we could return with a uninitialized value
in ret in process_leaf. This is actually pretty likely because we could
very easily run into a block group item key and have a garbage value in
ret and think there was an errror. Fix this by initializing ret to 0.
Reported-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Fixes: fd708b81d972 ("Btrfs: add a extent ref verify tool")
CC: stable@xxxxxxxxxxxxxxx # 4.19+
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/ref-verify.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/ref-verify.c
+++ b/fs/btrfs/ref-verify.c
@@ -511,7 +511,7 @@ static int process_leaf(struct btrfs_roo
struct btrfs_extent_data_ref *dref;
struct btrfs_shared_data_ref *sref;
u32 count;
- int i = 0, tree_block_level = 0, ret;
+ int i = 0, tree_block_level = 0, ret = 0;
struct btrfs_key key;
int nritems = btrfs_header_nritems(leaf);
