From: Stanley.Yang Date: Mon, 12 Jun 2023 10:25:48 +0000 (+0800) Subject: drm/amdgpu: Add checking mc_vram_size X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=43aedbf4da1db9a9c2f9e160a4ae96dfda83774c;p=linux.git drm/amdgpu: Add checking mc_vram_size Do not compare injection address with mc_vram_size if mc_vram_size is zero. Signed-off-by: Stanley.Yang Reviewed-by: Tao Zhou Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index 89e9ba33aca1e..4769a18304d7a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -489,7 +489,8 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, ret = amdgpu_ras_feature_enable(adev, &data.head, 1); break; case 2: - if ((data.inject.address >= adev->gmc.mc_vram_size) || + if ((data.inject.address >= adev->gmc.mc_vram_size && + adev->gmc.mc_vram_size) || (data.inject.address >= RAS_UMC_INJECT_ADDR_LIMIT)) { dev_warn(adev->dev, "RAS WARN: input address " "0x%llx is invalid.",