[Intel-gfx] [PATCH] drm/i915/dp: Fix compilation of intel_dp_hdcp_check_link

[Sean Paul]

On Thu, Jan 18, 2018 at 04:10:25PM +0000, Chris Wilson wrote:
> drivers/gpu/drm/i915/intel_dp.c: In function ‘intel_dp_hdcp_check_link’:
> drivers/gpu/drm/i915/intel_dp.c:5191:26: error: ?: using integer constants in boolean context [-Werror=int-in-bool-context]
>    return ret >= 0 ? -EIO : ret;
> 
> Fixes: 20f24d776d1b ("drm/i915: Implement HDCP for DisplayPort")
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Thanks for the patch! Applied to the topic branch.

Sean

> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: Ramalingam C <ramalingam.c at intel.com>
> Cc: Sean Paul <seanpaul at chromium.org>
> Cc: Jani Nikula <jani.nikula at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_dp.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 68229f53d5b8..0f2290c7bede 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -5184,12 +5184,14 @@ bool intel_dp_hdcp_check_link(struct intel_digital_port *intel_dig_port)
>  {
>  	ssize_t ret;
>  	u8 bstatus;
> +
>  	ret = drm_dp_dpcd_read(&intel_dig_port->dp.aux, DP_AUX_HDCP_BSTATUS,
>  			       &bstatus, 1);
>  	if (ret != 1) {
>  		DRM_ERROR("Read bstatus from DP/AUX failed (%zd)\n", ret);
> -		return ret >= 0 ? -EIO : ret;
> +		return false;
>  	}
> +
>  	return !(bstatus & (DP_BSTATUS_LINK_FAILURE | DP_BSTATUS_REAUTH_REQ));
>  }
>  
> -- 
> 2.15.1
> 
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-- 
Sean Paul, Software Engineer, Google / Chromium OS