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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/gpu/drm/virtio/virtgpu_object.c
View File

@@ -149,7 +149,7 @@ struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
struct virtio_gpu_object_shmem *shmem;
struct drm_gem_shmem_object *dshmem;
shmem = kzalloc(sizeof(*shmem), GFP_KERNEL);
shmem = kzalloc_obj(*shmem, GFP_KERNEL);
if (!shmem)
return ERR_PTR(-ENOMEM);
@@ -177,9 +177,7 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
else
*nents = pages->orig_nents;
*ents = kvmalloc_array(*nents,
sizeof(struct virtio_gpu_mem_entry),
GFP_KERNEL);
*ents = kvmalloc_objs(struct virtio_gpu_mem_entry, *nents, GFP_KERNEL);
if (!(*ents)) {
DRM_ERROR("failed to allocate ent list\n");
return -ENOMEM;