Alex Deucher e79d5c0870 drm/amdgpu: check before checking pci bridge registers ...

Make sure we are not the root device before attempting to
read the pcie bridge registers to check the pcie gen speeed.

Fixes a crash when the device is passed through to a VM.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

2015-10-06 10:43:16 -04:00

68 KiB

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