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| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-10-10 22:53:46 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-10 09:04:47 -0600 |
| commit | 58a9edce0aa912640abe47d3fc039e6230ef848b (patch) | |
| tree | 286a3dece8b65378b1df55c0bda54f0c14871624 /block | |
| parent | 8264c3214f28b52b399d9e03bfa7feec275a0d71 (diff) | |
| download | linux-58a9edce0aa912640abe47d3fc039e6230ef848b.tar.gz linux-58a9edce0aa912640abe47d3fc039e6230ef848b.tar.bz2 linux-58a9edce0aa912640abe47d3fc039e6230ef848b.zip | |
blkcg: check pol->cpd_free_fn before free cpd
check pol->cpd_free_fn() instead of pol->cpd_alloc_fn() when free cpd.
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-cgroup.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index d3f56baee936..e7ec676043b1 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1452,7 +1452,7 @@ int blkcg_policy_register(struct blkcg_policy *pol) return 0; err_free_cpds: - if (pol->cpd_alloc_fn) { + if (pol->cpd_free_fn) { list_for_each_entry(blkcg, &all_blkcgs, all_blkcgs_node) { if (blkcg->cpd[pol->plid]) { pol->cpd_free_fn(blkcg->cpd[pol->plid]); @@ -1492,7 +1492,7 @@ void blkcg_policy_unregister(struct blkcg_policy *pol) /* remove cpds and unregister */ mutex_lock(&blkcg_pol_mutex); - if (pol->cpd_alloc_fn) { + if (pol->cpd_free_fn) { list_for_each_entry(blkcg, &all_blkcgs, all_blkcgs_node) { if (blkcg->cpd[pol->plid]) { pol->cpd_free_fn(blkcg->cpd[pol->plid]); |