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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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4
drivers/comedi/drivers.c
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@@ -101,7 +101,7 @@ int comedi_alloc_subdevices(struct comedi_device *dev, int num_subdevices)
if (num_subdevices < 1)
return -EINVAL;
s = kcalloc(num_subdevices, sizeof(*s), GFP_KERNEL);
s = kzalloc_objs(*s, num_subdevices, GFP_KERNEL);
if (!s)
return -ENOMEM;
dev->subdevices = s;
@@ -733,7 +733,7 @@ static int __comedi_device_postconfig_async(struct comedi_device *dev,
dev_warn(dev->class_dev,
"async subdevices should have a cancel() function\n");
async = kzalloc(sizeof(*async), GFP_KERNEL);
async = kzalloc_obj(*async, GFP_KERNEL);
if (!async)
return -ENOMEM;