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, 6 insertions, 5 deletions

diff --git a/drivers/gpu/drm/tiny/appletbdrm.c b/drivers/gpu/drm/tiny/appletbdrm.c
index 751b05753c94..585c1a0ec025 100644
--- a/drivers/gpu/drm/tiny/appletbdrm.c
+++ b/drivers/gpu/drm/tiny/appletbdrm.c
@@ -225,7 +225,7 @@ static int appletbdrm_send_msg(struct appletbdrm_device *adev, __le32 msg)
 	struct appletbdrm_msg_simple_request *request;
 	int ret;
 
-	request = kzalloc(sizeof(*request), GFP_KERNEL);
+	request = kzalloc_obj(*request, GFP_KERNEL);
 	if (!request)
 		return -ENOMEM;
 
@@ -260,7 +260,7 @@ static int appletbdrm_get_information(struct appletbdrm_device *adev)
 	__le32 pixel_format;
 	int ret;
 
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = kzalloc_obj(*info, GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
@@ -358,7 +358,8 @@ static int appletbdrm_primary_plane_helper_atomic_check(struct drm_plane *plane,
 	if (!appletbdrm_state->request)
 		return -ENOMEM;
 
-	appletbdrm_state->response = kzalloc(sizeof(*appletbdrm_state->response), GFP_KERNEL);
+	appletbdrm_state->response = kzalloc_obj(*appletbdrm_state->response,
+						 GFP_KERNEL);
 
 	if (!appletbdrm_state->response)
 		return -ENOMEM;
@@ -505,7 +506,7 @@ static void appletbdrm_primary_plane_reset(struct drm_plane *plane)
 
 	WARN_ON(plane->state);
 
-	appletbdrm_state = kzalloc(sizeof(*appletbdrm_state), GFP_KERNEL);
+	appletbdrm_state = kzalloc_obj(*appletbdrm_state, GFP_KERNEL);
 	if (!appletbdrm_state)
 		return;
 
@@ -520,7 +521,7 @@ static struct drm_plane_state *appletbdrm_primary_plane_duplicate_state(struct d
 	if (WARN_ON(!plane->state))
 		return NULL;
 
-	appletbdrm_state = kzalloc(sizeof(*appletbdrm_state), GFP_KERNEL);
+	appletbdrm_state = kzalloc_obj(*appletbdrm_state, GFP_KERNEL);
 	if (!appletbdrm_state)
 		return NULL;