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-rw-r--r--kernel/cgroup/cgroup.c4
-rw-r--r--kernel/module.c3
-rw-r--r--kernel/workqueue.c3
3 files changed, 4 insertions, 6 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index acb66713f9b6..077370bf8964 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -4820,8 +4820,8 @@ static struct cgroup *cgroup_create(struct cgroup *parent)
int ret;
/* allocate the cgroup and its ID, 0 is reserved for the root */
- cgrp = kzalloc(sizeof(*cgrp) +
- sizeof(cgrp->ancestor_ids[0]) * (level + 1), GFP_KERNEL);
+ cgrp = kzalloc(struct_size(cgrp, ancestor_ids, (level + 1)),
+ GFP_KERNEL);
if (!cgrp)
return ERR_PTR(-ENOMEM);
diff --git a/kernel/module.c b/kernel/module.c
index c9bea7f2b43e..68469b37d61a 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1604,8 +1604,7 @@ static void add_notes_attrs(struct module *mod, const struct load_info *info)
if (notes == 0)
return;
- notes_attrs = kzalloc(sizeof(*notes_attrs)
- + notes * sizeof(notes_attrs->attrs[0]),
+ notes_attrs = kzalloc(struct_size(notes_attrs, attrs, notes),
GFP_KERNEL);
if (notes_attrs == NULL)
return;
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 7ea75529eabb..9f9983b0a27d 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3714,8 +3714,7 @@ apply_wqattrs_prepare(struct workqueue_struct *wq,
lockdep_assert_held(&wq_pool_mutex);
- ctx = kzalloc(sizeof(*ctx) + nr_node_ids * sizeof(ctx->pwq_tbl[0]),
- GFP_KERNEL);
+ ctx = kzalloc(struct_size(ctx, pwq_tbl, nr_node_ids), GFP_KERNEL);
new_attrs = alloc_workqueue_attrs(GFP_KERNEL);
tmp_attrs = alloc_workqueue_attrs(GFP_KERNEL);