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treewide: Replace kmalloc with kmalloc_obj for non-scalar types

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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>
This commit is contained in:
Kees Cook
2026-02-20 23:49:23 -08:00
parent d39a1d7486
commit 69050f8d6d
8016 changed files with 20055 additions and 20913 deletions
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6
drivers/base/class.c
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@@ -194,7 +194,7 @@ int class_register(const struct class *cls)
return -EINVAL;
}
cp = kzalloc(sizeof(*cp), GFP_KERNEL);
cp = kzalloc_obj(*cp, GFP_KERNEL);
if (!cp)
return -ENOMEM;
klist_init(&cp->klist_devices, klist_class_dev_get, klist_class_dev_put);
@@ -268,7 +268,7 @@ struct class *class_create(const char *name)
struct class *cls;
int retval;
cls = kzalloc(sizeof(*cls), GFP_KERNEL);
cls = kzalloc_obj(*cls, GFP_KERNEL);
if (!cls) {
retval = -ENOMEM;
goto error;
@@ -573,7 +573,7 @@ struct class_compat *class_compat_register(const char *name)
{
struct class_compat *cls;
cls = kmalloc(sizeof(struct class_compat), GFP_KERNEL);
cls = kmalloc_obj(struct class_compat, GFP_KERNEL);
if (!cls)
return NULL;
cls->kobj = kobject_create_and_add(name, &class_kset->kobj);