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 *".

Kees Cook committed 8 months ago

Commit 69050f81 parent d39a1d78016 files · +20055 −20913Browse files

Showing the changes to kernel/fail_function.c (1 of 8016 files). Show all

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kernel/fail_function.c+1−1

@@ -57,7 +57,7 @@ static struct fei_attr fei_attr_new(const char sym, unsigned long addr) · 56 unmodified lines
57	57	{
58	58	struct fei_attr *attr;
59	59
60		− attr = kzalloc(sizeof(*attr), GFP_KERNEL);
	60	+ attr = kzalloc_obj(*attr, GFP_KERNEL);
61	61	if (attr) {
62	62	attr->kp.symbol_name = kstrdup(sym, GFP_KERNEL);
63	63	if (!attr->kp.symbol_name) {