From: Wu Bo <[email protected]> If a call of the function blkg_lookup_check() failed, we should be release the previously allocated block group before jumping to the lable 'fail_unlock' in the implementation of the function blkg_conf_prep().
Suggested-by: Markus Elfring <[email protected]> Signed-off-by: Wu Bo <[email protected]> --- V2: omit the source code quotation from the change description --- block/blk-cgroup.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 930212c..afeb769 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -682,6 +682,7 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol, blkg = blkg_lookup_check(pos, pol, q); if (IS_ERR(blkg)) { ret = PTR_ERR(blkg); + blkg_free(new_blkg); goto fail_unlock; } -- 1.8.3.1
