AcoSail/kernel_optimize_test
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cfq-iosched: free cic_index if cfqd allocation fails

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When struct cfq_data allocation fails, cic_index need to be freed.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Namhyung Kim 2011-05-24 10:23:22 +02:00 committed by Jens Axboe
parent 20359f27e8
commit 1547010e6e
1 changed files with 5 additions and 1 deletions
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block/cfq-iosched.c
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@ -3973,8 +3973,12 @@ static void *cfq_init_queue(struct request_queue *q)
return NULL;
cfqd = kmalloc_node(sizeof(*cfqd), GFP_KERNEL | __GFP_ZERO, q->node);
if (!cfqd)
if (!cfqd) {
spin_lock(&cic_index_lock);
ida_remove(&cic_index_ida, i);
spin_unlock(&cic_index_lock);
return NULL;
}
/*
* Don't need take queue_lock in the routine, since we are