treewide: Replace kmalloc with kmalloc_obj for non-scalar types

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 7fec575d32d6..27610fa31b61 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -223,7 +223,7 @@ devcgroup_css_alloc(struct cgroup_subsys_state *parent_css)
 {
 	struct dev_cgroup *dev_cgroup;
 
-	dev_cgroup = kzalloc(sizeof(*dev_cgroup), GFP_KERNEL);
+	dev_cgroup = kzalloc_obj(*dev_cgroup, GFP_KERNEL);
 	if (!dev_cgroup)
 		return ERR_PTR(-ENOMEM);
 	INIT_LIST_HEAD(&dev_cgroup->exceptions);