Merge tag 'drm-misc-fixes-2024-08-08' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

A fix for drm/client to prevent a null pointer dereference, a fix for a
double-free in drm/bridge-connector, a fix for a gem shmem test, and a
fix for async flips updates.

Signed-off-by: Dave Airlie <[email protected]>

From: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20240808-debonair-smoky-mustang-8b6b3f@houat

Author: airlied

Documentation/devicetree/bindings/display/panel/samsung,atna33xc20.yaml

@@ -17,10 +17,13 @@ properties:
     oneOf:
       # Samsung 13.3" FHD (1920x1080 pixels) eDP AMOLED panel
       - const: samsung,atna33xc20
-      # Samsung 14.5" WQXGA+ (2880x1800 pixels) eDP AMOLED panel
       - items:
-          - const: samsung,atna45af01
-          - const: samsung,atna33xc20
+        - enum:
+          # Samsung 14.5" WQXGA+ (2880x1800 pixels) eDP AMOLED panel
+          - samsung,atna45af01
+          # Samsung 14.5" 3K (2944x1840 pixels) eDP AMOLED panel
+          - samsung,atna45dc02
+        - const: samsung,atna33xc20
 
   enable-gpios: true
   port: true

drivers/gpu/drm/drm_atomic_uapi.c

@@ -1071,23 +1071,16 @@ int drm_atomic_set_property(struct drm_atomic_state *state,
 		}
 
 		if (async_flip &&
-		    prop != config->prop_fb_id &&
-		    prop != config->prop_in_fence_fd &&
-		    prop != config->prop_fb_damage_clips) {
+		    (plane_state->plane->type != DRM_PLANE_TYPE_PRIMARY ||
+		     (prop != config->prop_fb_id &&
+		      prop != config->prop_in_fence_fd &&
+		      prop != config->prop_fb_damage_clips))) {
 			ret = drm_atomic_plane_get_property(plane, plane_state,
 							    prop, &old_val);
 			ret = drm_atomic_check_prop_changes(ret, old_val, prop_value, prop);
 			break;
 		}
 
-		if (async_flip && plane_state->plane->type != DRM_PLANE_TYPE_PRIMARY) {
-			drm_dbg_atomic(prop->dev,
-				       "[OBJECT:%d] Only primary planes can be changed during async flip\n",
-				       obj->id);
-			ret = -EINVAL;
-			break;
-		}
-
 		ret = drm_atomic_plane_set_property(plane,
 				plane_state, file_priv,
 				prop, prop_value);

drivers/gpu/drm/drm_bridge_connector.c

@@ -443,10 +443,8 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
 			panel_bridge = bridge;
 	}
 
-	if (connector_type == DRM_MODE_CONNECTOR_Unknown) {
-		kfree(bridge_connector);
+	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
 		return ERR_PTR(-EINVAL);
-	}
 
 	if (bridge_connector->bridge_hdmi)
 		ret = drmm_connector_hdmi_init(drm, connector,
@@ -461,10 +459,8 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
 		ret = drmm_connector_init(drm, connector,
 					  &drm_bridge_connector_funcs,
 					  connector_type, ddc);
-	if (ret) {
-		kfree(bridge_connector);
+	if (ret)
 		return ERR_PTR(ret);
-	}
 
 	drm_connector_helper_add(connector, &drm_bridge_connector_helper_funcs);
 

drivers/gpu/drm/drm_client_modeset.c

@@ -880,6 +880,11 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width,
 
 			kfree(modeset->mode);
 			modeset->mode = drm_mode_duplicate(dev, mode);
+			if (!modeset->mode) {
+				ret = -ENOMEM;
+				break;
+			}
+
 			drm_connector_get(connector);
 			modeset->connectors[modeset->num_connectors++] = connector;
 			modeset->x = offset->x;

drivers/gpu/drm/omapdrm/Kconfig

@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config DRM_OMAP
 	tristate "OMAP DRM"
+	depends on MMU
 	depends on DRM && OF
 	depends on ARCH_OMAP2PLUS || (COMPILE_TEST && PAGE_SIZE_LESS_THAN_64KB)
 	select DRM_KMS_HELPER

drivers/gpu/drm/tests/drm_gem_shmem_test.c

@@ -102,6 +102,17 @@ static void drm_gem_shmem_test_obj_create_private(struct kunit *test)
 
 	sg_init_one(sgt->sgl, buf, TEST_SIZE);
 
+	/*
+	 * Set the DMA mask to 64-bits and map the sgtables
+	 * otherwise drm_gem_shmem_free will cause a warning
+	 * on debug kernels.
+	 */
+	ret = dma_set_mask(drm_dev->dev, DMA_BIT_MASK(64));
+	KUNIT_ASSERT_EQ(test, ret, 0);
+
+	ret = dma_map_sgtable(drm_dev->dev, sgt, DMA_BIDIRECTIONAL, 0);
+	KUNIT_ASSERT_EQ(test, ret, 0);
+
 	/* Init a mock DMA-BUF */
 	buf_mock.size = TEST_SIZE;
 	attach_mock.dmabuf = &buf_mock;