bcachefs: fix device remove error path

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c
index b2113c5426ca360fe2f158c9c42e5207c3533652..4e811ffdec8e1eb327f29666ee2e39c190bb648c 100644 (file)
--- a/fs/bcachefs/super.c
+++ b/fs/bcachefs/super.c
@@ -1306,7 +1306,8 @@ int bch2_dev_remove(struct bch_fs *c, struct bch_dev *ca, int flags)
        mutex_unlock(&c->state_lock);
        return 0;
 err:
-       if (ca->mi.state == BCH_MEMBER_STATE_RW)
+       if (ca->mi.state == BCH_MEMBER_STATE_RW &&
+           !percpu_ref_is_zero(&ca->io_ref))
                __bch2_dev_read_write(c, ca);
        mutex_unlock(&c->state_lock);
        return ret;