1 files changed, 24 insertions, 22 deletions

diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 96b266b37ba4..6b3541159c0f 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -202,7 +202,7 @@ enum drm_mode_status drm_encoder_mode_valid(struct drm_encoder *encoder,
 
 int
 drm_connector_mode_valid(struct drm_connector *connector,
-			 struct drm_display_mode *mode,
+			 const struct drm_display_mode *mode,
 			 struct drm_modeset_acquire_ctx *ctx,
 			 enum drm_mode_status *status)
 {
@@ -338,10 +338,23 @@ void drm_kms_helper_poll_reschedule(struct drm_device *dev)
 }
 EXPORT_SYMBOL(drm_kms_helper_poll_reschedule);
 
+static int detect_connector_status(struct drm_connector *connector,
+				   struct drm_modeset_acquire_ctx *ctx,
+				   bool force)
+{
+	const struct drm_connector_helper_funcs *funcs = connector->helper_private;
+
+	if (funcs->detect_ctx)
+		return funcs->detect_ctx(connector, ctx, force);
+	else if (connector->funcs->detect)
+		return connector->funcs->detect(connector, force);
+
+	return connector_status_connected;
+}
+
 static enum drm_connector_status
 drm_helper_probe_detect_ctx(struct drm_connector *connector, bool force)
 {
-	const struct drm_connector_helper_funcs *funcs = connector->helper_private;
 	struct drm_modeset_acquire_ctx ctx;
 	int ret;
 
@@ -349,14 +362,8 @@ drm_helper_probe_detect_ctx(struct drm_connector *connector, bool force)
 
 retry:
 	ret = drm_modeset_lock(&connector->dev->mode_config.connection_mutex, &ctx);
-	if (!ret) {
-		if (funcs->detect_ctx)
-			ret = funcs->detect_ctx(connector, &ctx, force);
-		else if (connector->funcs->detect)
-			ret = connector->funcs->detect(connector, force);
-		else
-			ret = connector_status_connected;
-	}
+	if (!ret)
+		ret = detect_connector_status(connector, &ctx, force);
 
 	if (ret == -EDEADLK) {
 		drm_modeset_backoff(&ctx);
@@ -390,7 +397,6 @@ drm_helper_probe_detect(struct drm_connector *connector,
 			struct drm_modeset_acquire_ctx *ctx,
 			bool force)
 {
-	const struct drm_connector_helper_funcs *funcs = connector->helper_private;
 	struct drm_device *dev = connector->dev;
 	int ret;
 
@@ -401,12 +407,7 @@ drm_helper_probe_detect(struct drm_connector *connector,
 	if (ret)
 		return ret;
 
-	if (funcs->detect_ctx)
-		ret = funcs->detect_ctx(connector, ctx, force);
-	else if (connector->funcs->detect)
-		ret = connector->funcs->detect(connector, force);
-	else
-		ret = connector_status_connected;
+	ret = detect_connector_status(connector, ctx, force);
 
 	if (ret != connector->status)
 		connector->epoch_counter += 1;
@@ -957,15 +958,16 @@ static void drm_kms_helper_poll_init_release(struct drm_device *dev, void *res)
  * cleaned up when the DRM device goes away.
  *
  * See drm_kms_helper_poll_init() for more information.
- *
- * Returns:
- * 0 on success, or a negative errno code otherwise.
  */
-int drmm_kms_helper_poll_init(struct drm_device *dev)
+void drmm_kms_helper_poll_init(struct drm_device *dev)
 {
+	int ret;
+
 	drm_kms_helper_poll_init(dev);
 
-	return drmm_add_action_or_reset(dev, drm_kms_helper_poll_init_release, dev);
+	ret = drmm_add_action_or_reset(dev, drm_kms_helper_poll_init_release, dev);
+	if (ret)
+		drm_warn(dev, "Connector status will not be updated, error %d\n", ret);
 }
 EXPORT_SYMBOL(drmm_kms_helper_poll_init);