From 69050f8d6d075dc01af7a5f2f550a8067510366f Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 20 Feb 2026 23:49:23 -0800 Subject: treewide: Replace kmalloc with kmalloc_obj for non-scalar types 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 --- drivers/base/component.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/base/component.c') diff --git a/drivers/base/component.c b/drivers/base/component.c index 024ad9471b8a..fef563aa13e5 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -363,7 +363,7 @@ static int component_match_realloc(struct component_match *match, size_t num) if (match->alloc == num) return 0; - new = kmalloc_array(num, sizeof(*new), GFP_KERNEL); + new = kmalloc_objs(*new, num, GFP_KERNEL); if (!new) return -ENOMEM; @@ -521,7 +521,7 @@ int component_master_add_with_match(struct device *parent, if (ret) return ret; - adev = kzalloc(sizeof(*adev), GFP_KERNEL); + adev = kzalloc_obj(*adev, GFP_KERNEL); if (!adev) return -ENOMEM; @@ -732,7 +732,7 @@ static int __component_add(struct device *dev, const struct component_ops *ops, struct component *component; int ret; - component = kzalloc(sizeof(*component), GFP_KERNEL); + component = kzalloc_obj(*component, GFP_KERNEL); if (!component) return -ENOMEM; -- cgit v1.2.3