Merge tag 'topic/drm-misc-2016-05-18' of git://anongit.freedesktop.org/drm-intel into drm-next

Update drm-misc pull with a few more fixes included, plus the two from
Arnd for the fallout from the drm_gem_object_lookup() refactor that I
failed to spot :(

* tag 'topic/drm-misc-2016-05-18' of git://anongit.freedesktop.org/drm-intel:
  drm: remove unused dev variables
  drm: mediatek: fixup drm_gem_object_lookup API change
  drm/tegra: Fix crash caused by reference count imbalance
  drm: Fix error handling in drm_connector_register
  drm: Avoid connector reference imbalance on error path
  drm/fb_helper: Fix references to dev->mode_config.num_connector
  drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config()
  qxl: catch qxlfb_create_pinned_object failures
  drm/exynos/hdmi: add a missing tab
  drm/fb-cma-helper: Add function drm_fb_cma_create_with_funcs()
  drm/fb-cma-helper: Use const for drm_framebuffer_funcs argument
  drm: Drop connector argument from __drm_atomic_helper_connector_destroy_state
  drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state
  drm: Drop crtc argument from __drm_atomic_helper_crtc_destroy_state
  drm: Remove unused drm_device from drm_gem_object_lookup()

1 files changed, 11 insertions, 4 deletions

diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 44e102799195..d1239ebc190f 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -745,13 +745,17 @@ static void tegra_dsi_soft_reset(struct tegra_dsi *dsi)
 
 static void tegra_dsi_connector_reset(struct drm_connector *connector)
 {
-	struct tegra_dsi_state *state =
-		kzalloc(sizeof(*state), GFP_KERNEL);
+	struct tegra_dsi_state *state = kzalloc(sizeof(*state), GFP_KERNEL);
 
-	if (state) {
+	if (!state)
+		return;
+
+	if (connector->state) {
+		__drm_atomic_helper_connector_destroy_state(connector->state);
 		kfree(connector->state);
-		__drm_atomic_helper_connector_reset(connector, &state->base);
 	}
+
+	__drm_atomic_helper_connector_reset(connector, &state->base);
 }
 
 static struct drm_connector_state *
@@ -764,6 +768,9 @@ tegra_dsi_connector_duplicate_state(struct drm_connector *connector)
 	if (!copy)
 		return NULL;
 
+	__drm_atomic_helper_connector_duplicate_state(connector,
+						      &copy->base);
+
 	return &copy->base;
 }