drm/i915: Simplify return value from intel_get_load_detect_pipe

... and so remove the confusion as to whether to use the returned crtc
or intel_encoder->base.crtc with the subsequent load-detection. Even
though they were the same, the two instances of load-detection code
disagreed over which was the more correct.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 6b22c1d..3322582 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1361,12 +1361,10 @@
 	if (intel_tv->base.base.crtc && intel_tv->base.base.crtc->enabled) {
 		type = intel_tv_detect_type(intel_tv, connector);
 	} else if (force) {
-		struct drm_crtc *crtc;
 		int dpms_mode;
 
-		crtc = intel_get_load_detect_pipe(&intel_tv->base, connector,
-						  &mode, &dpms_mode);
-		if (crtc) {
+		if (intel_get_load_detect_pipe(&intel_tv->base, connector,
+					       &mode, &dpms_mode)) {
 			type = intel_tv_detect_type(intel_tv, connector);
 			intel_release_load_detect_pipe(&intel_tv->base, connector,
 						       dpms_mode);