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path: root/block/blk-cgroup.c
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Diffstat (limited to 'block/blk-cgroup.c')
-rw-r--r--block/blk-cgroup.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index cd251830038a..f91a4e09e0c9 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -823,18 +823,15 @@ static void blkcg_css_offline(struct cgroup_subsys_state *css)
static void blkcg_css_free(struct cgroup_subsys_state *css)
{
struct blkcg *blkcg = css_to_blkcg(css);
+ int i;
mutex_lock(&blkcg_pol_mutex);
list_del(&blkcg->all_blkcgs_node);
mutex_unlock(&blkcg_pol_mutex);
- if (blkcg != &blkcg_root) {
- int i;
-
- for (i = 0; i < BLKCG_MAX_POLS; i++)
- kfree(blkcg->pd[i]);
- kfree(blkcg);
- }
+ for (i = 0; i < BLKCG_MAX_POLS; i++)
+ kfree(blkcg->pd[i]);
+ kfree(blkcg);
}
static struct cgroup_subsys_state *
@@ -848,13 +845,12 @@ blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
if (!parent_css) {
blkcg = &blkcg_root;
- goto done;
- }
-
- blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL);
- if (!blkcg) {
- ret = ERR_PTR(-ENOMEM);
- goto free_blkcg;
+ } else {
+ blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL);
+ if (!blkcg) {
+ ret = ERR_PTR(-ENOMEM);
+ goto free_blkcg;
+ }
}
for (i = 0; i < BLKCG_MAX_POLS ; i++) {
@@ -881,7 +877,6 @@ blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
pol->cpd_init_fn(blkcg);
}
-done:
spin_lock_init(&blkcg->lock);
INIT_RADIX_TREE(&blkcg->blkg_tree, GFP_NOWAIT);
INIT_HLIST_HEAD(&blkcg->blkg_list);