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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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12
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
View File

@@ -192,8 +192,8 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
return PTR_ERR(chunk_array);
p->nchunks = cs->in.num_chunks;
p->chunks = kvmalloc_array(p->nchunks, sizeof(struct amdgpu_cs_chunk),
GFP_KERNEL);
p->chunks = kvmalloc_objs(struct amdgpu_cs_chunk, p->nchunks,
GFP_KERNEL);
if (!p->chunks) {
ret = -ENOMEM;
goto free_chunk;
@@ -523,8 +523,7 @@ static int amdgpu_cs_p2_syncobj_out(struct amdgpu_cs_parser *p,
if (p->post_deps)
return -EINVAL;
p->post_deps = kmalloc_array(num_deps, sizeof(*p->post_deps),
GFP_KERNEL);
p->post_deps = kmalloc_objs(*p->post_deps, num_deps, GFP_KERNEL);
p->num_post_deps = 0;
if (!p->post_deps)
@@ -557,8 +556,7 @@ static int amdgpu_cs_p2_syncobj_timeline_signal(struct amdgpu_cs_parser *p,
if (p->post_deps)
return -EINVAL;
p->post_deps = kmalloc_array(num_deps, sizeof(*p->post_deps),
GFP_KERNEL);
p->post_deps = kmalloc_objs(*p->post_deps, num_deps, GFP_KERNEL);
p->num_post_deps = 0;
if (!p->post_deps)
@@ -1691,7 +1689,7 @@ static int amdgpu_cs_wait_any_fence(struct amdgpu_device *adev,
long r;
/* Prepare the fence array */
array = kcalloc(fence_count, sizeof(struct dma_fence *), GFP_KERNEL);
array = kzalloc_objs(struct dma_fence *, fence_count, GFP_KERNEL);
if (array == NULL)
return -ENOMEM;