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cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails

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If we fail allocating the blkpg stats, we free cfqd and cfgq.
But we need to free the IDA cfqd->cic_index as well.

Signed-off-by: majianpeng <majianpeng@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
majianpeng 2011-11-30 15:47:48 +01:00 committed by Jens Axboe
parent 59bd71a81b
commit 2984ff38cc
1 changed files with 5 additions and 0 deletions
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block/cfq-iosched.c
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@ -4036,6 +4036,11 @@ static void *cfq_init_queue(struct request_queue *q)
if (blkio_alloc_blkg_stats(&cfqg->blkg)) {
kfree(cfqg);
spin_lock(&cic_index_lock);
ida_remove(&cic_index_ida, cfqd->cic_index);
spin_unlock(&cic_index_lock);
kfree(cfqd);
return NULL;
}