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, 2 insertions, 2 deletions

diff --git a/lib/test_objagg.c b/lib/test_objagg.c
index ce5c4c36a084..a391f0b998c9 100644
--- a/lib/test_objagg.c
+++ b/lib/test_objagg.c
@@ -107,7 +107,7 @@ static void *delta_create(void *priv, void *parent_obj, void *obj)
 	if (!delta_check(priv, parent_obj, obj))
 		return ERR_PTR(-EINVAL);
 
-	delta = kzalloc(sizeof(*delta), GFP_KERNEL);
+	delta = kzalloc_obj(*delta, GFP_KERNEL);
 	if (!delta)
 		return ERR_PTR(-ENOMEM);
 	delta->key_id_diff = diff;
@@ -130,7 +130,7 @@ static void *root_create(void *priv, void *obj, unsigned int id)
 	struct tokey *key = obj;
 	struct root *root;
 
-	root = kzalloc(sizeof(*root), GFP_KERNEL);
+	root = kzalloc_obj(*root, GFP_KERNEL);
 	if (!root)
 		return ERR_PTR(-ENOMEM);
 	memcpy(&root->key, key, sizeof(root->key));