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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>
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1 parent 87c9ea7 commit fd7949564ced88385ca7758a4c1f47c274233dd5 @htejun htejun committed with axboe Jun 4, 2012
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  1. +1 −0 block/cfq-iosched.c
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@@ -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;

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