drm: panel: simple: add missing platform_driver_unregister() in panel_simple_init

Add the missing platform_driver_unregister() before return
from panel_simple_init in the error handling case when failed
to register panel_simple_dsi_driver with CONFIG_DRM_MIPI_DSI
enabled.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201031011856.137307-1-miaoqinglang@huawei.com

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 1327df0..372a9bc 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -4675,8 +4675,10 @@ static int __init panel_simple_init(void)
 
        if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) {
                err = mipi_dsi_driver_register(&panel_simple_dsi_driver);
-               if (err < 0)
+               if (err < 0) {
+                       platform_driver_unregister(&panel_simple_platform_driver);
                        return err;
+               }
        }
 
        return 0;