Merge tag 'drm-misc-next-2020-05-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.8:

UAPI Changes:

Cross-subsystem Changes:

 * MAINTAINERS: restore alphabetical order; update cirrus driver
 * Dcomuentation: document visionix, chronteli, ite vendor prefices; update
                  documentation for Chrontel CH7033, IT6505, IVO, BOE,
		  Panasonic, Chunghwa, AUO bindings; convert dw_mipi_dsi.txt
		  to YAML; remove todo item for drm_display_mode.hsync removal;

Core Changes:

 * drm: add devm_drm_dev_alloc() for managed allocations of drm_device;
        use DRM_MODESET_LOCK_ALL_*() in mode-object code; remove
        drm_display_mode.hsync; small cleanups of unused variables,
	compiler warnings and static functions
 * drm/client: dual-lincensing: GPL-2.0 or MIT
 * drm/mm: optimize tree searches in rb_hole_addr()

Driver Changes:

 * drm/{many}: use devm_drm_dev_alloc(); don't use drm_device.dev_private
 * drm/ast: don't double-assign to drm_crtc_funcs.set_config; drop
            drm_connector_register()
 * drm/bochs: drop drm_connector_register()
 * drm/bridge: add support for Chrontel ch7033; fix stack usage with
               old gccs; return error pointer in drm_panel_bridge_add()
 * drm/cirrus: Move to tiny
 * drm/dp_mst: don't use 2nd sideband tx slot; revert "Remove single tx
               msg restriction"
 * drm/lima: support runtime PM;
 * drm/meson: limit modes wrt chipset
 * drm/panel: add support for Visionox rm69299; fix clock on
              boe-tv101wum-n16; fix panel type for AUO G101EVN10;
	      add support for Ivo M133NFW4 R0; add support for BOE
	      NV133FHM-N61; add support for AUO G121EAN01.4, G156XTN01.0,
	      G190EAN01
 * drm/pl111: improve vexpress init; fix module auto-loading
 * drm/stm: read number of endpoints from device tree
 * drm/vboxvideo: use managed PCI functions; drop DRM_MTRR_WC
 * drm/vkms: fix use-after-free in vkms_gem_create(); enable cursor
             support by default
 * fbdev: use boolean values in several drivers
 * fbdev/controlfb: fix COMPILE_TEST
 * fbdev/w100fb: fix double-free bug

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200507072503.GA10979@linux-uq9g

1 files changed, 7 insertions, 20 deletions

diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 9cc6d075cb40..d1aa50fd6d65 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -57,27 +57,19 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
 	struct udl_device *udl;
 	int r;
 
-	udl = kzalloc(sizeof(*udl), GFP_KERNEL);
-	if (!udl)
-		return ERR_PTR(-ENOMEM);
-
-	r = drm_dev_init(&udl->drm, &driver, &interface->dev);
-	if (r) {
-		kfree(udl);
-		return ERR_PTR(r);
-	}
+	udl = devm_drm_dev_alloc(&interface->dev, &driver,
+				 struct udl_device, drm);
+	if (IS_ERR(udl))
+		return udl;
 
 	udl->udev = udev;
-	udl->drm.dev_private = udl;
-	drmm_add_final_kfree(&udl->drm, udl);
 
 	r = udl_init(udl);
-	if (r) {
-		drm_dev_put(&udl->drm);
+	if (r)
 		return ERR_PTR(r);
-	}
 
 	usb_set_intfdata(interface, udl);
+
 	return udl;
 }
 
@@ -93,17 +85,13 @@ static int udl_usb_probe(struct usb_interface *interface,
 
 	r = drm_dev_register(&udl->drm, 0);
 	if (r)
-		goto err_free;
+		return r;
 
 	DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
 
 	drm_fbdev_generic_setup(&udl->drm, 0);
 
 	return 0;
-
-err_free:
-	drm_dev_put(&udl->drm);
-	return r;
 }
 
 static void udl_usb_disconnect(struct usb_interface *interface)
@@ -113,7 +101,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
 	drm_kms_helper_poll_fini(dev);
 	udl_drop_usb(dev);
 	drm_dev_unplug(dev);
-	drm_dev_put(dev);
 }
 
 /*