static int find_gap()

in st-dma-fence-chain.c [337:383]

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

static int find_gap(void *arg)
{
	struct fence_chains fc;
	struct dma_fence *fence;
	int err;
	int i;

	err = fence_chains_init(&fc, 64, seqno_inc2);
	if (err)
		return err;

	for (i = 0; i < fc.chain_length; i++) {
		fence = dma_fence_get(fc.tail);
		err = dma_fence_chain_find_seqno(&fence, 2 * i + 1);
		dma_fence_put(fence);
		if (err) {
			pr_err("Reported %d for find_seqno(%d:%d)!\n",
			       err, fc.chain_length + 1, 2 * i + 1);
			goto err;
		}
		if (fence != fc.chains[i]) {
			pr_err("Incorrect fence.seqno:%lld reported by find_seqno(%d:%d)\n",
			       fence->seqno,
			       fc.chain_length + 1,
			       2 * i + 1);
			err = -EINVAL;
			goto err;
		}

		dma_fence_get(fence);
		err = dma_fence_chain_find_seqno(&fence, 2 * i + 2);
		dma_fence_put(fence);
		if (err) {
			pr_err("Error reported for finding self\n");
			goto err;
		}
		if (fence != fc.chains[i]) {
			pr_err("Incorrect fence reported by find self\n");
			err = -EINVAL;
			goto err;
		}
	}

err:
	fence_chains_fini(&fc);
	return err;
}