btrfs: send: fix lost error return value in will_overwrite_ref()

The direct-return refactoring in commit b3047a42f55d ("btrfs: send:
directly return from will_overwrite_ref() and simplify it") changed
will_overwrite_ref() to return directly instead of going through the
common out label.

That resulted in a negative return value from is_inode_existent() to
start being converted to 0, making lookup errors unable to be
distinguished from the inode not existing.

process_recorded_refs() expects negative errors from
will_overwrite_ref() and aborts processing when it receives one.

Return the value from is_inode_existent() to restore the previous error
propagation behavior as it was before the refactor.

Fixes: b3047a42f55d ("btrfs: send: directly return from will_overwrite_ref() and simplify it")
Signed-off-by: Avi Weiss <thnkslprpt@gmail.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

0 files changed, 0 insertions, 0 deletions