OpenCloudOS-Kernel/drivers/gpu/drm/vgem
Thomas Zimmermann 4ff22f487f drm: Return error codes from struct drm_driver.gem_create_object
GEM helper libraries use struct drm_driver.gem_create_object to let
drivers override GEM object allocation. On failure, the call returns
NULL.

Change the semantics to make the calls return a pointer-encoded error.
This aligns the callback with its callers. Fixes the ingenic driver,
which already returns an error pointer.

Also update the callers to handle the involved types more strictly.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211130095255.26710-1-tzimmermann@suse.de
2021-12-02 11:12:39 +01:00
..
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
vgem_drv.c drm: Return error codes from struct drm_driver.gem_create_object 2021-12-02 11:12:39 +01:00
vgem_drv.h drm/vgem: drop use of drmP.h 2019-07-17 12:52:55 +02:00
vgem_fence.c dma-buf: drop the _rcu postfix on function names v3 2021-06-06 11:19:51 +02:00