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drm/amdgpu: add missing error handling in function amdgpu_gmc_flush_gpu_tlb_pasid

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Fix the unchecked return value warning reported by Coverity,
so add error handling.

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bob Zhou 2024-06-20 15:40:06 +08:00 committed by Alex Deucher
parent 94534f41fd
commit 9ff2e14cf0
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
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@ -718,7 +718,11 @@ int amdgpu_gmc_flush_gpu_tlb_pasid(struct amdgpu_device *adev, uint16_t pasid,
ndw += kiq->pmf->invalidate_tlbs_size;
spin_lock(&adev->gfx.kiq[inst].ring_lock);
amdgpu_ring_alloc(ring, ndw);
r = amdgpu_ring_alloc(ring, ndw);
if (r) {
spin_unlock(&adev->gfx.kiq[inst].ring_lock);
goto error_unlock_reset;
}
if (adev->gmc.flush_tlb_needs_extra_type_2)
kiq->pmf->kiq_invalidate_tlbs(ring, pasid, 2, all_hub);