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/kernel/time/timer_migration.c b/kernel/time/timer_migration.c
index 6da9cd562b20..21e72318aeb8 100644
--- a/kernel/time/timer_migration.c
+++ b/kernel/time/timer_migration.c
@@ -1766,7 +1766,7 @@ static int tmigr_setup_groups(unsigned int cpu, unsigned int node,
 	int i, top = 0, err = 0, start_lvl = 0;
 	bool root_mismatch = false;
 
-	stack = kcalloc(tmigr_hierarchy_levels, sizeof(*stack), GFP_KERNEL);
+	stack = kzalloc_objs(*stack, tmigr_hierarchy_levels, GFP_KERNEL);
 	if (!stack)
 		return -ENOMEM;
 
@@ -2001,7 +2001,8 @@ static int __init tmigr_init(void)
 	 */
 	tmigr_crossnode_level = cpulvl;
 
-	tmigr_level_list = kcalloc(tmigr_hierarchy_levels, sizeof(struct list_head), GFP_KERNEL);
+	tmigr_level_list = kzalloc_objs(struct list_head,
+					tmigr_hierarchy_levels, GFP_KERNEL);
 	if (!tmigr_level_list)
 		goto err;