Mohammed Gamal 85851d9ff7 drm/hyperv: Fix device removal on Gen1 VMs ...

[ Upstream commit e048834c20 ]

The Hyper-V DRM driver tries to free MMIO region on removing
the device regardless of VM type, while Gen1 VMs don't use MMIO
and hence causing the kernel to crash on a NULL pointer dereference.

Fix this by making deallocating MMIO only on Gen2 machines and implement
removal for Gen1

Fixes: 76c56a5aff ("drm/hyperv: Add DRM driver for hyperv synthetic video device")

Signed-off-by: Mohammed Gamal <mgamal@redhat.com>
Reviewed-by: Deepak Rawat <drawat.floss@gmail.com>
Signed-off-by: Deepak Rawat <drawat.floss@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211119112900.300537-1-mgamal@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-12-01 09:04:51 +01:00

..

hyperv_drm_drv.c

drm/hyperv: Fix device removal on Gen1 VMs

2021-12-01 09:04:51 +01:00

hyperv_drm_modeset.c

drm/hyperv: Fix double mouse pointers

2021-10-15 15:04:44 +10:00

hyperv_drm_proto.c

drm/hyperv: Fix double mouse pointers

2021-10-15 15:04:44 +10:00

hyperv_drm.h

drm/hyperv: Fix double mouse pointers

2021-10-15 15:04:44 +10:00

Makefile

drm/hyperv: Add DRM driver for hyperv synthetic video device

2021-06-07 08:04:10 -07:00