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authorChristian König <christian.koenig@amd.com>2015-09-07 12:32:09 +0200
committerAlex Deucher <alexander.deucher@amd.com>2015-09-23 17:23:33 -0400
commitb7d698d7fd7d132c6ebe56d230584f2cae6c94ee (patch)
tree3c227faefa5d3435e6820ef7340a51bbc20d27e0 /drivers
parent1886d1a9caed20f457dd69a926c7f8b54c2d5f48 (diff)
drm/amdgpu: fix overflow on 32bit systems
mem->start is a long, so this can overflow on 32bit systems. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index f68b7cdc370a..b68dcb9edacd 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 {