block: fix return value on cfq_init() failure

cfq_init() would return zero after kmem cache creation failure.  Fix
so that it returns -ENOMEM.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 673c977..ae5113d 100644 (file)
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -4202,6 +4202,7 @@ static int __init cfq_init(void)
        if (ret)
                return ret;
 
+       ret = -ENOMEM;
        cfq_pool = KMEM_CACHE(cfq_queue, 0);
        if (!cfq_pool)
                goto err_pol_unreg;