bcachefs: Fix error handling in bch2_trans_extent_merging

The back merging case wasn't returning errors correctly.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2021-10-21 14:33:31 -04:00 • committed by Kent Overstreet
commit de924abbe7