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/codetag.c b/lib/codetag.c
index 545911cebd25..465952125bcb 100644
--- a/lib/codetag.c
+++ b/lib/codetag.c
@@ -193,7 +193,7 @@ static int codetag_module_init(struct codetag_type *cttype, struct module *mod)
 
 	BUG_ON(range.start > range.stop);
 
-	cmod = kmalloc(sizeof(*cmod), GFP_KERNEL);
+	cmod = kmalloc_obj(*cmod, GFP_KERNEL);
 	if (unlikely(!cmod))
 		return -ENOMEM;
 
@@ -383,7 +383,7 @@ codetag_register_type(const struct codetag_type_desc *desc)
 
 	BUG_ON(desc->tag_size <= 0);
 
-	cttype = kzalloc(sizeof(*cttype), GFP_KERNEL);
+	cttype = kzalloc_obj(*cttype, GFP_KERNEL);
 	if (unlikely(!cttype))
 		return ERR_PTR(-ENOMEM);