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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/media/rc/lirc_dev.c
View File

@@ -128,7 +128,7 @@ static int lirc_open(struct inode *inode, struct file *file)
{
struct rc_dev *dev = container_of(inode->i_cdev, struct rc_dev,
lirc_cdev);
struct lirc_fh *fh = kzalloc(sizeof(*fh), GFP_KERNEL);
struct lirc_fh *fh = kzalloc_obj(*fh, GFP_KERNEL);
unsigned long flags;
int retval;
@@ -267,7 +267,7 @@ static ssize_t lirc_transmit(struct file *file, const char __user *buf,
goto out_unlock;
}
raw = kmalloc_array(LIRCBUF_SIZE, sizeof(*raw), GFP_KERNEL);
raw = kmalloc_objs(*raw, LIRCBUF_SIZE, GFP_KERNEL);
if (!raw) {
ret = -ENOMEM;
goto out_unlock;