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, 2 insertions, 2 deletions

diff --git a/drivers/usb/gadget/function/f_loopback.c b/drivers/usb/gadget/function/f_loopback.c
index 39862e236837..b8fa60af9385 100644
--- a/drivers/usb/gadget/function/f_loopback.c
+++ b/drivers/usb/gadget/function/f_loopback.c
@@ -425,7 +425,7 @@ static struct usb_function *loopback_alloc(struct usb_function_instance *fi)
 	struct f_loopback	*loop;
 	struct f_lb_opts	*lb_opts;
 
-	loop = kzalloc(sizeof *loop, GFP_KERNEL);
+	loop = kzalloc_obj(*loop, GFP_KERNEL);
 	if (!loop)
 		return ERR_PTR(-ENOMEM);
 
@@ -568,7 +568,7 @@ static struct usb_function_instance *loopback_alloc_instance(void)
 {
 	struct f_lb_opts *lb_opts;
 
-	lb_opts = kzalloc(sizeof(*lb_opts), GFP_KERNEL);
+	lb_opts = kzalloc_obj(*lb_opts, GFP_KERNEL);
 	if (!lb_opts)
 		return ERR_PTR(-ENOMEM);
 	mutex_init(&lb_opts->lock);