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, 3 deletions

diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index 7d3e82e4c2fc..0f64aa4797f7 100644
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -279,7 +279,7 @@ static void rfkill_send_events(struct rfkill *rfkill, enum rfkill_operation op)
 	struct rfkill_int_event *ev;
 
 	list_for_each_entry(data, &rfkill_fds, list) {
-		ev = kzalloc(sizeof(*ev), GFP_KERNEL);
+		ev = kzalloc_obj(*ev, GFP_KERNEL);
 		if (!ev)
 			continue;
 		rfkill_fill_event(&ev->ev, rfkill, op);
@@ -1165,7 +1165,7 @@ static int rfkill_fop_open(struct inode *inode, struct file *file)
 	struct rfkill *rfkill;
 	struct rfkill_int_event *ev, *tmp;
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	data = kzalloc_obj(*data, GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -1182,7 +1182,7 @@ static int rfkill_fop_open(struct inode *inode, struct file *file)
 	 */
 
 	list_for_each_entry(rfkill, &rfkill_list, node) {
-		ev = kzalloc(sizeof(*ev), GFP_KERNEL);
+		ev = kzalloc_obj(*ev, GFP_KERNEL);
 		if (!ev)
 			goto free;
 		rfkill_sync(rfkill);