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, 5 insertions, 5 deletions

diff --git a/kernel/padata.c b/kernel/padata.c
index db7c75787a2b..f0bf62e9a1f2 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -540,7 +540,7 @@ static struct parallel_data *padata_alloc_pd(struct padata_shell *ps)
 	struct padata_instance *pinst = ps->pinst;
 	struct parallel_data *pd;
 
-	pd = kzalloc(sizeof(struct parallel_data), GFP_KERNEL);
+	pd = kzalloc_obj(struct parallel_data, GFP_KERNEL);
 	if (!pd)
 		goto err;
 
@@ -952,7 +952,7 @@ struct padata_instance *padata_alloc(const char *name)
 {
 	struct padata_instance *pinst;
 
-	pinst = kzalloc(sizeof(struct padata_instance), GFP_KERNEL);
+	pinst = kzalloc_obj(struct padata_instance, GFP_KERNEL);
 	if (!pinst)
 		goto err;
 
@@ -1038,7 +1038,7 @@ struct padata_shell *padata_alloc_shell(struct padata_instance *pinst)
 	struct parallel_data *pd;
 	struct padata_shell *ps;
 
-	ps = kzalloc(sizeof(*ps), GFP_KERNEL);
+	ps = kzalloc_obj(*ps, GFP_KERNEL);
 	if (!ps)
 		goto out;
 
@@ -1106,8 +1106,8 @@ void __init padata_init(void)
 #endif
 
 	possible_cpus = num_possible_cpus();
-	padata_works = kmalloc_array(possible_cpus, sizeof(struct padata_work),
-				     GFP_KERNEL);
+	padata_works = kmalloc_objs(struct padata_work, possible_cpus,
+				    GFP_KERNEL);
 	if (!padata_works)
 		goto remove_dead_state;