drm/amd/amdgpu: add error handling to amdgpu_virt_read_pf2vf_data

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[ Upstream commit 64dcf2f01d ]

[Why]
when vram lost happened in guest, try to write vram can lead to
kernel stuck.

[How]
When the readback data is invalid, don't do write work, directly
reschedule a new work.

Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Reviewed-by: Monk Liu<monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Jingwen Chen 2021-01-19 16:54:50 +08:00 • committed by Greg Kroah-Hartman

parent a986f93454

commit 4b73f01d5e

1 changed files with 5 additions and 1 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c

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