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 <kees@kernel.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/alloc_tag.c b/lib/alloc_tag.c
index 00ae4673a271..58991ab09d84 100644
--- a/lib/alloc_tag.c
+++ b/lib/alloc_tag.c
@@ -669,8 +669,9 @@ static int __init alloc_mod_tags_mem(void)
 		return -ENOMEM;
 	}
 
-	vm_module_tags->pages = kmalloc_array(get_vm_area_size(vm_module_tags) >> PAGE_SHIFT,
-					sizeof(struct page *), GFP_KERNEL | __GFP_ZERO);
+	vm_module_tags->pages = kmalloc_objs(struct page *,
+					     get_vm_area_size(vm_module_tags) >> PAGE_SHIFT,
+					     GFP_KERNEL | __GFP_ZERO);
 	if (!vm_module_tags->pages) {
 		free_vm_area(vm_module_tags);
 		return -ENOMEM;