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| author | majianpeng <majianpeng@gmail.com> | 2011-11-30 15:47:48 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2011-11-30 15:47:48 +0100 |
| commit | 2984ff38ccf6cbc02a7a996a36c7d6f69f3c6146 (patch) | |
| tree | 95f4803da220a899cfb840fbbc1eb74e1b8ba003 /block/cfq-iosched.c | |
| parent | 59bd71a81b66990564eac69aedd28ad87a2c81f4 (diff) | |
| download | linux-2984ff38ccf6cbc02a7a996a36c7d6f69f3c6146.tar.gz linux-2984ff38ccf6cbc02a7a996a36c7d6f69f3c6146.tar.bz2 linux-2984ff38ccf6cbc02a7a996a36c7d6f69f3c6146.zip | |
cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails
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>
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 16ace89613bc..3beed83437a3 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -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; } |