static int test_signaling()

in st-dma-resv.c [61:107]

• 42 lines of code
• 7 McCabe index (conditional complexity)

static int test_signaling(void *arg, bool shared)
{
	struct dma_resv resv;
	struct dma_fence *f;
	int r;

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

	dma_resv_init(&resv);
	r = dma_resv_lock(&resv, NULL);
	if (r) {
		pr_err("Resv locking failed\n");
		goto err_free;
	}

	if (shared) {
		r = dma_resv_reserve_shared(&resv, 1);
		if (r) {
			pr_err("Resv shared slot allocation failed\n");
			goto err_unlock;
		}

		dma_resv_add_shared_fence(&resv, f);
	} else {
		dma_resv_add_excl_fence(&resv, f);
	}

	if (dma_resv_test_signaled(&resv, shared)) {
		pr_err("Resv unexpectedly signaled\n");
		r = -EINVAL;
		goto err_unlock;
	}
	dma_fence_signal(f);
	if (!dma_resv_test_signaled(&resv, shared)) {
		pr_err("Resv not reporting signaled\n");
		r = -EINVAL;
		goto err_unlock;
	}
err_unlock:
	dma_resv_unlock(&resv);
err_free:
	dma_resv_fini(&resv);
	dma_fence_put(f);
	return r;
}