drm/amdgpu: Improve error handling for HMM

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Use unsigned long for number of pages.

Check that pfns are valid after hmm_vma_fault. If they are not,
return an error instead of continuing with invalid page pointers and
PTEs.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Felix Kuehling 2019-05-07 17:46:14 -04:00 • committed by Alex Deucher

parent b9c5eb5b80

commit 1986a3b022

1 changed files with 18 additions and 4 deletions

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

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