drm/amdgpu: validate XCP topology counts before division

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In aqua_vanjaram_get_xcp_res_info(), max_res[i] can be zero.
When res_lt_xcp is true the code divides num_xcp by max_res[i],
causing a divide fault.

Skip the loop body for absent resources.

v2: Remove redundant checks (Lijo)

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Asad Kamal 2026-06-16 21:24:05 +08:00 • committed by Alex Deucher

parent b68f165492

commit 0eda57ee30

1 changed files with 3 additions and 1 deletions

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

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