[PATCH 1/8] drm/panel: himax-hx8394: Handle errors from mipi_dsi_dcs_set_display_on() better

[Dmitry Baryshkov]

On Fri, May 17, 2024 at 02:36:36PM -0700, Douglas Anderson wrote:
> If mipi_dsi_dcs_set_display_on() returned an error then we'd store
> that in the "ret" variable and jump to error handling. We'd then
> attempt an orderly poweroff. Unfortunately we then blew away the value
> stored in "ret". That means that if the orderly poweroff actually
> worked then we're return 0 (no error) from hx8394_enable() even though
> the panel wasn't enabled.
> 
> Fix this by not blowing away "ret".
> 
> Found by code inspection.
> 
> Fixes: 65dc9360f741 ("drm: panel: Add Himax HX8394 panel controller driver")
> Signed-off-by: Douglas Anderson <dianders at chromium.org>
> ---
> 
>  drivers/gpu/drm/panel/panel-himax-hx8394.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>


-- 
With best wishes
Dmitry