From: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx> commit 6fb15dcbcf4f212930350eaee174bb60ed40a536 upstream. The call to radeon_vm_clear_freed might clear bo_va->bo, so we have to check it before dereferencing it. Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx> Acked-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/radeon/radeon_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -582,7 +582,7 @@ static void radeon_gem_va_update_vm(stru if (r) goto error_unlock; - if (bo_va->it.start) + if (bo_va->it.start && bo_va->bo) r = radeon_vm_bo_update(rdev, bo_va, &bo_va->bo->tbo.mem); error_unlock: Patches currently in stable-queue which might be from pierre-eric.pelloux-prayer@xxxxxxx are queue-5.10/drm-radeon-check-bo_va-bo-is-non-null-before-using-it.patch
