bcachefs: don't free error pointers

Reported-by: syzbot+3333603f569fc2ef258c@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/recovery.c b/fs/bcachefs/recovery.c
index be5b47619327001ac8191c026575f6ac18d74d16..8091d0686029f40a694042f860c91de8840576ed 100644 (file)
--- a/fs/bcachefs/recovery.c
+++ b/fs/bcachefs/recovery.c
@@ -902,7 +902,8 @@ out:
                bch2_journal_keys_put_initial(c);
                bch2_find_btree_nodes_exit(&c->found_btree_nodes);
        }
-       kfree(clean);
+       if (!IS_ERR(clean))
+               kfree(clean);
 
        if (!ret &&
            test_bit(BCH_FS_need_delete_dead_snapshots, &c->flags) &&