As mipi_dsi_driver_register could return error if fails, it should be better to check the return value and return error if fails.
Fixes: 2f733d6194bd ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn --- drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c index 145047e19394..cc90afbf4b3e 100644 --- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c +++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c @@ -498,7 +498,12 @@ static struct i2c_driver rpi_touchscreen_driver = {
static int __init rpi_touchscreen_init(void) { - mipi_dsi_driver_register(&rpi_touchscreen_dsi_driver); + int ret; + + ret = mipi_dsi_driver_register(&rpi_touchscreen_dsi_driver); + if (ret) + return ret; + return i2c_add_driver(&rpi_touchscreen_driver); } module_init(rpi_touchscreen_init);