drm: change connector to tmp_connector

This wasn't too harmful since we already look at connector,
which has the same effect as the loop for any non-cloned configs.
Only when we have a cloned configuration is it important to look
at other connectors. Furthermore existing userspace always changes
dpms on all of them anyway.
Signed-off-by: JohnHunter <zhjwpku@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/drm_atomic_helper.c

@@ -2001,10 +2001,10 @@ void drm_atomic_helper_connector_dpms(struct drm_connector *connector,
 	WARN_ON(!drm_modeset_is_locked(&config->connection_mutex));
 
 	list_for_each_entry(tmp_connector, &config->connector_list, head) {
-		if (connector->state->crtc != crtc)
+		if (tmp_connector->state->crtc != crtc)
 			continue;
 
-		if (connector->dpms == DRM_MODE_DPMS_ON) {
+		if (tmp_connector->dpms == DRM_MODE_DPMS_ON) {
 			active = true;
 			break;
 		}