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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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15
drivers/gpu/drm/drm_atomic.c
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@@ -132,16 +132,17 @@ drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state)
*/
state->allow_modeset = true;
state->crtcs = kcalloc(dev->mode_config.num_crtc,
sizeof(*state->crtcs), GFP_KERNEL);
state->crtcs = kzalloc_objs(*state->crtcs, dev->mode_config.num_crtc,
GFP_KERNEL);
if (!state->crtcs)
goto fail;
state->planes = kcalloc(dev->mode_config.num_total_plane,
sizeof(*state->planes), GFP_KERNEL);
state->planes = kzalloc_objs(*state->planes,
dev->mode_config.num_total_plane,
GFP_KERNEL);
if (!state->planes)
goto fail;
state->colorops = kcalloc(dev->mode_config.num_colorop,
sizeof(*state->colorops), GFP_KERNEL);
state->colorops = kzalloc_objs(*state->colorops,
dev->mode_config.num_colorop, GFP_KERNEL);
if (!state->colorops)
goto fail;
@@ -176,7 +177,7 @@ drm_atomic_state_alloc(struct drm_device *dev)
if (!config->funcs->atomic_state_alloc) {
struct drm_atomic_state *state;
state = kzalloc(sizeof(*state), GFP_KERNEL);
state = kzalloc_obj(*state, GFP_KERNEL);
if (!state)
return NULL;
if (drm_atomic_state_init(dev, state) < 0) {