[PATCH v4 08/37] drm/vkms: Add error handling in plane config creation

[Louis Chauvet <louis.chauvet@bootlin.com>]

For future patches, it is useful to properly handle errors in
vkms_config_create_plane.

Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
---
 drivers/gpu/drm/vkms/vkms_config.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms_config.c
index 5a654d6dead8..1fd2ed1167c5 100644
--- a/drivers/gpu/drm/vkms/vkms_config.c
+++ b/drivers/gpu/drm/vkms/vkms_config.c
@@ -384,13 +384,16 @@ void vkms_config_register_debugfs(struct vkms_device *vkms_device)
 			      ARRAY_SIZE(vkms_config_debugfs_list));
 }
 
-struct vkms_config_plane *vkms_config_create_plane(struct vkms_config *config)
+struct vkms_config_plane __must_check *vkms_config_create_plane(struct vkms_config *config)
 {
 	struct vkms_config_plane *plane_cfg;
+	int ret;
 
 	plane_cfg = kzalloc_obj(*plane_cfg);
-	if (!plane_cfg)
-		return ERR_PTR(-ENOMEM);
+	if (!plane_cfg) {
+		ret = -ENOMEM;
+		goto fail;
+	}
 
 	plane_cfg->config = config;
 	plane_cfg->default_pipeline = false;
@@ -400,6 +403,9 @@ struct vkms_config_plane *vkms_config_create_plane(struct vkms_config *config)
 	list_add_tail(&plane_cfg->link, &config->planes);
 
 	return plane_cfg;
+
+fail:
+	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_IF_KUNIT(vkms_config_create_plane);
 

-- 
2.54.0