From b7d698d7fd7d132c6ebe56d230584f2cae6c94ee Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Mon, 7 Sep 2015 12:32:09 +0200 Subject: [PATCH] drm/amdgpu: fix overflow on 32bit systems MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit mem->start is a long, so this can overflow on 32bit systems. Signed-off-by: Christian König Reviewed-by: Jammy Zhou Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index f68b7cd..b68dcb9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -855,7 +855,7 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, int r; if (mem) { - addr = mem->start << PAGE_SHIFT; + addr = (u64)mem->start << PAGE_SHIFT; if (mem->mem_type != TTM_PL_TT) addr += adev->vm_manager.vram_base_offset; } else { -- 2.7.4