drm/amdgpu: Use unsigned ring indices in amdgpu_queue_mgr_map

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commit fa7c7939b4 upstream.

This matches the corresponding UAPI fields. Treating the ring index as
signed could result in accessing random unrelated memory if the MSB was
set.

Fixes: effd924d2f ("drm/amdgpu: untie user ring ids from kernel ring ids v6")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Michel Dänzer 2017-11-22 15:55:21 +01:00 • committed by Greg Kroah-Hartman

parent bacbe44889

commit 955c907b97

2 changed files with 4 additions and 4 deletions

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2

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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6

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

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