Btrfs: fix check_path_shared so it returns the right value

When running xfstests 224 I kept getting ENOSPC when trying to remove the files,
and this is because we were returning ret from check_path_shared while it was
uninitalized, which isn't right.  Fix this to return 0 properly, and now
xfstests 224 doesn't freak out when it tries to clean itself up.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 40fee137dd11..5621818921f8 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2718,9 +2718,10 @@ static int check_path_shared(struct btrfs_root *root,
         struct extent_buffer *eb;
         int level;
         u64 refs = 1;
-        int uninitialized_var(ret);
 
         for (level = 0; level < BTRFS_MAX_LEVEL; level++) {
+                int ret;
+
                 if (!path->nodes[level])
                         break;
                 eb = path->nodes[level];
@@ -2731,7 +2732,7 @@ static int check_path_shared(struct btrfs_root *root,
                 if (refs > 1)
                         return 1;
         }
-        return ret; /* XXX callers? */
+        return 0;
 }
 
 /*