On Fri, 2015-03-27 at 16:15 +0300, Dan Carpenter wrote:
> Hello Ander Conselvan de Oliveira,
>
> The patch 944b0c765757: "drm/i915: Copy the staged connector config
> to the legacy atomic state" from Mar 20, 2015, leads to the following
> Smatch warning:
>
> drivers/gpu/drm/i915/intel_display.c:11937 intel_modeset_stage_output_state()
> error: 'connector_state' dereferencing possible ERR_PTR()
>
> drivers/gpu/drm/i915/intel_display.c
> 11928 /* Now we've also updated encoder->new_crtc for all encoders. */
> 11929 for_each_intel_connector(dev, connector) {
> 11930 connector_state =
> 11931 drm_atomic_get_connector_state(state, &connector->base);
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> It's complaining that this can return an ERR_PTR.
Yeah, oops, I missed that one. Thanks for reporting.
Cheers,
Ander
> 11932
> 11933 if (connector->new_encoder) {
> 11934 if (connector->new_encoder != connector->encoder)
> 11935 connector->encoder = connector->new_encoder;
> 11936 } else {
> 11937 connector_state->crtc = NULL;
> 11938 }
> 11939 }
>
>
> regards,
> dan carpenter
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