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| author | Hou Tao <houtao1@huawei.com> | 2017-02-03 12:19:07 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-02-03 17:52:35 +0300 |
| commit | 9b54d816e00425c3a517514e0d677bb3cec49258 (patch) | |
| tree | 4316604c3430ab596be3b6e6a120de23a384a541 /block/blk-cgroup.c | |
| parent | 0cacba6cf8252438f8166bd3fa1c3370dd28a769 (diff) | |
| download | linux-9b54d816e00425c3a517514e0d677bb3cec49258.tar.xz | |
blkcg: fix double free of new_blkg in blkcg_init_queue
If blkg_create fails, new_blkg passed as an argument will
be freed by blkg_create, so there is no need to free it again.
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-cgroup.c')
| -rw-r--r-- | block/blk-cgroup.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 37fe595cfd70..295e98c2c8cc 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1079,10 +1079,8 @@ int blkcg_init_queue(struct request_queue *q) if (preloaded) radix_tree_preload_end(); - if (IS_ERR(blkg)) { - blkg_free(new_blkg); + if (IS_ERR(blkg)) return PTR_ERR(blkg); - } q->root_blkg = blkg; q->root_rl.blkg = blkg; |