[Intel-gfx] drm/i915: Fix the static code analysis warning in debugfs

[Nathan Chancellor]

On Wed, Jan 09, 2019 at 01:14:14PM -0800, Radhakrishna Sripada wrote:
> intel_dp->dsc_dpcd is defined as an array making the if check redundant.
> 
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>

This fixes a Clang warning I saw after the patch that added this hit
linux-next.

Reviewed-by: Nathan Chancellor <natechancellor at gmail.com>
Tested-by: Nathan Chancellor <natechancellor at gmail.com>

> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 95813e21ae02..908e41f9cb7d 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -4958,9 +4958,8 @@ static int i915_dsc_fec_support_show(struct seq_file *m, void *data)
>  		crtc_state = to_intel_crtc_state(crtc->state);
>  		seq_printf(m, "DSC_Enabled: %s\n",
>  			   yesno(crtc_state->dsc_params.compression_enable));
> -		if (intel_dp->dsc_dpcd)
> -			seq_printf(m, "DSC_Sink_Support: %s\n",
> -				   yesno(drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd)));
> +		seq_printf(m, "DSC_Sink_Support: %s\n",
> +			   yesno(drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd)));
>  		if (!intel_dp_is_edp(intel_dp))
>  			seq_printf(m, "FEC_Sink_Support: %s\n",
>  				   yesno(drm_dp_sink_supports_fec(intel_dp->fec_capable)));