drm-fixes-2021-12-03:

drm fixes for 5.16-rc4

dma-buf:
- memory leak fix

msm:
- kasan found memory overwrite
- mmap flags
- fencing error bug
- ioctl NULL ptr
- uninit var
- devfreqless devices fix
- dsi lanes fix
- dp: avoid unpowered aux xfers

amdgpu:
- IP discovery based enumeration fixes
- vkms fixes
- DSC fixes for DP MST
- Audio fix for hotplug with tiled displays
- Misc display fixes
- DP tunneling fix
- DP fix
- Aldebaran fix

amdkfd:
- Locking fix
- Static checker fix
- Fix double free

i915:
- backlight regression
- Intel HDR backlight detection fix
- revert TGL workaround that caused hangs

virtio-gpu:
- switch back to drm_poll

vc4:
- memory leak
- error check fix
- HVS modesetting fixes
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