The main thing is that the data->priv[] array has AFE_PORT_MAX elements
so the > condition should be >=.  But we may as well check for negative
values as well just to be safe.

Fixes: 24c4cbcf ("ASoC: qdsp6: q6afe: Add q6afe dai driver")
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMark Brown <broonie@kernel.org>