bcachefs: Check for errors from register_shrinker()

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

diff --git a/fs/bcachefs/btree_cache.c b/fs/bcachefs/btree_cache.c
index 9d8c73ec57d370c8a54a45bfa41c223468461900..2c8f67fabc5ae7d415313897f54be736548995bc 100644 (file)
--- a/fs/bcachefs/btree_cache.c
+++ b/fs/bcachefs/btree_cache.c
@@ -448,7 +448,7 @@ int bch2_fs_btree_cache_init(struct bch_fs *c)
        bc->shrink.scan_objects         = bch2_btree_cache_scan;
        bc->shrink.seeks                = 4;
        bc->shrink.batch                = btree_pages(c) * 2;
-       register_shrinker(&bc->shrink, "%s/btree_cache", c->name);
+       ret = register_shrinker(&bc->shrink, "%s/btree_cache", c->name);
 out:
        pr_verbose_init(c->opts, "ret %i", ret);
        return ret;