hi,

On Fri, Feb 08, 2019 at 03:24:12PM +0300, Konstantin Sudakov wrote:
> Hello, Maxime!
> 
> >+mode = drm_mode_duplicate(panel->drm, &default_mode);
> >+if (!mode) {
> >+DRM_DEV_ERROR(&ctx->dsi->dev,
> >+      "Failed to add mode " DRM_MODE_FMT "\n",
> >+      DRM_MODE_ARG(mode));
> >+return -EINVAL;
> >+}
> 
> Just small fix: DRM_MODE_ARG(mode) -> DRM_MODE_ARG(&default_mode).
> The "mode" variable is NULL, it leads to the UB.

Good catch, thanks!
Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com