From: Qinglang Miao miaoqinglang@huawei.com

[ Upstream commit f2e66f212a9de04afc2caa5ec79057c0ac75c728 ]

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-miaoqi... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/panel/panel-simple.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 64b23bdebd1d1..7740772e4d575 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -1435,8 +1435,10 @@ 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;