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/kernel/module/main.c b/kernel/module/main.c
index 710ee30b3bea..b2ac20299915 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -662,7 +662,7 @@ static int add_module_usage(struct module *a, struct module *b)
 	struct module_use *use;
 
 	pr_debug("Allocating new usage for %s.\n", a->name);
-	use = kmalloc(sizeof(*use), GFP_ATOMIC);
+	use = kmalloc_obj(*use, GFP_ATOMIC);
 	if (!use)
 		return -ENOMEM;
 
@@ -3024,7 +3024,7 @@ static noinline int do_init_module(struct module *mod)
 	}
 #endif
 
-	freeinit = kmalloc(sizeof(*freeinit), GFP_KERNEL);
+	freeinit = kmalloc_obj(*freeinit, GFP_KERNEL);
 	if (!freeinit) {
 		ret = -ENOMEM;
 		goto fail;