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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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8
drivers/base/regmap/regmap.c
View File

@@ -689,7 +689,7 @@ struct regmap *__regmap_init(struct device *dev,
if (!config)
goto err;
map = kzalloc(sizeof(*map), GFP_KERNEL);
map = kzalloc_obj(*map, GFP_KERNEL);
if (map == NULL) {
ret = -ENOMEM;
goto err;
@@ -1117,7 +1117,7 @@ skip_format_initialization:
}
}
new = kzalloc(sizeof(*new), GFP_KERNEL);
new = kzalloc_obj(*new, GFP_KERNEL);
if (new == NULL) {
ret = -ENOMEM;
goto err_range;
@@ -1274,7 +1274,7 @@ int regmap_field_bulk_alloc(struct regmap *regmap,
struct regmap_field *rf;
int i;
rf = kcalloc(num_fields, sizeof(*rf), GFP_KERNEL);
rf = kzalloc_objs(*rf, num_fields, GFP_KERNEL);
if (!rf)
return -ENOMEM;
@@ -1384,7 +1384,7 @@ EXPORT_SYMBOL_GPL(devm_regmap_field_free);
struct regmap_field *regmap_field_alloc(struct regmap *regmap,
struct reg_field reg_field)
{
struct regmap_field *rm_field = kzalloc(sizeof(*rm_field), GFP_KERNEL);
struct regmap_field *rm_field = kzalloc_obj(*rm_field, GFP_KERNEL);
if (!rm_field)
return ERR_PTR(-ENOMEM);