btrfs: remove redundant check on ret being non-zero

The error return variable ret is initialized to zero and then is
checked to see if it is non-zero in the if-block that follows it.
It is therefore impossible for ret to be non-zero after the if-block
hence the check is redundant and can be removed.

Detected by CoverityScan, CID#1021040 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 3a11ae6..f05fcc6 100644 (file)
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1143,8 +1143,6 @@ again:
                                goto again;
                        }
                        kfree(victim_name);
-                       if (ret)
-                               return ret;
 next:
                        cur_offset += victim_name_len + sizeof(*extref);
                }