Re: [PATCH 2/2] drm/i915: Make intel_get_crtc_new_encoder() less oopsy

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On Thu, 13 Apr 2023, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> The point of the WARN was to print something, not oops
> straight up. Currently that is precisely what happens
> if we can't find the connector for the crtc in the atomic
> state. Get the dev pointer from the atomic state instead
> of the potentially NULL encoder to avoid that.

Fixes: ?

>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 0334565cec82..5208b07505b2 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -959,7 +959,7 @@ intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
>  		num_encoders++;
>  	}
>  
> -	drm_WARN(encoder->base.dev, num_encoders != 1,
> +	drm_WARN(state->base.dev, num_encoders != 1,
>  		 "%d encoders for pipe %c\n",
>  		 num_encoders, pipe_name(master_crtc->pipe));

-- 
Jani Nikula, Intel Open Source Graphics Center




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