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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
Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/gpu/drm/v3d/v3d_submit.c
View File

@@ -335,9 +335,8 @@ v3d_get_multisync_post_deps(struct drm_file *file_priv,
return 0;
se->out_syncs = (struct v3d_submit_outsync *)
kvmalloc_array(count,
sizeof(struct v3d_submit_outsync),
GFP_KERNEL);
kvmalloc_objs(struct v3d_submit_outsync, count,
GFP_KERNEL);
if (!se->out_syncs)
return -ENOMEM;
@@ -486,9 +485,8 @@ v3d_get_cpu_timestamp_query_params(struct drm_file *file_priv,
job->job_type = V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY;
query_info->queries = kvmalloc_array(timestamp.count,
sizeof(struct v3d_timestamp_query),
GFP_KERNEL);
query_info->queries = kvmalloc_objs(struct v3d_timestamp_query,
timestamp.count, GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
@@ -545,9 +543,8 @@ v3d_get_cpu_reset_timestamp_params(struct drm_file *file_priv,
job->job_type = V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY;
query_info->queries = kvmalloc_array(reset.count,
sizeof(struct v3d_timestamp_query),
GFP_KERNEL);
query_info->queries = kvmalloc_objs(struct v3d_timestamp_query,
reset.count, GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
@@ -602,9 +599,8 @@ v3d_get_cpu_copy_query_results_params(struct drm_file *file_priv,
job->job_type = V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY;
query_info->queries = kvmalloc_array(copy.count,
sizeof(struct v3d_timestamp_query),
GFP_KERNEL);
query_info->queries = kvmalloc_objs(struct v3d_timestamp_query,
copy.count, GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
@@ -729,9 +725,8 @@ v3d_get_cpu_reset_performance_params(struct drm_file *file_priv,
job->job_type = V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY;
query_info->queries =
kvmalloc_array(reset.count,
sizeof(struct v3d_performance_query),
GFP_KERNEL);
kvmalloc_objs(struct v3d_performance_query, reset.count,
GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
@@ -771,9 +766,8 @@ v3d_get_cpu_copy_performance_query_params(struct drm_file *file_priv,
job->job_type = V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY;
query_info->queries =
kvmalloc_array(copy.count,
sizeof(struct v3d_performance_query),
GFP_KERNEL);
kvmalloc_objs(struct v3d_performance_query, copy.count,
GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
@@ -1082,8 +1076,8 @@ v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
goto fail;
}
job->base.bo = kcalloc(ARRAY_SIZE(args->bo_handles),
sizeof(*job->base.bo), GFP_KERNEL);
job->base.bo = kzalloc_objs(*job->base.bo, ARRAY_SIZE(args->bo_handles),
GFP_KERNEL);
if (!job->base.bo) {
ret = -ENOMEM;
goto fail;