Commit b3f4bdda authored by Young Xiao's avatar Young Xiao Committed by Alex Deucher
Browse files

drm: radeon: fix overflow on 32bit systems 



the type mem->start is unsigned long, so this can overflow on
32bit system, since the type addr is uint64_t.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarYoung Xiao <YangX92@hotmail.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ce998149

drivers/gpu/drm/radeon/radeon_vm.c

+1 −1
Original line number Diff line number Diff line
@@ -946,7 +946,7 @@ int radeon_vm_bo_update(struct radeon_device *rdev, 
		bo_va->flags &= ~RADEON_VM_PAGE_WRITEABLE;



	if (mem) {

		addr = mem->start << PAGE_SHIFT;

		addr = (u64)mem->start << PAGE_SHIFT;

		if (mem->mem_type != TTM_PL_SYSTEM) {

			bo_va->flags |= RADEON_VM_PAGE_VALID;

		}