static int test_rm_callback()

in st-dma-fence.c [212:242]

• 26 lines of code
• 5 McCabe index (conditional complexity)

static int test_rm_callback(void *arg)
{
	struct simple_cb cb = {};
	struct dma_fence *f;
	int err = -EINVAL;

	f = mock_fence();
	if (!f)
		return -ENOMEM;

	if (dma_fence_add_callback(f, &cb.cb, simple_callback)) {
		pr_err("Failed to add callback, fence already signaled!\n");
		goto err_free;
	}

	if (!dma_fence_remove_callback(f, &cb.cb)) {
		pr_err("Failed to remove callback!\n");
		goto err_free;
	}

	dma_fence_signal(f);
	if (cb.seen) {
		pr_err("Callback still signaled after removal!\n");
		goto err_free;
	}

	err = 0;
err_free:
	dma_fence_put(f);
	return err;
}