On Mon, Jul 04, 2016 at 08:59:53AM +0000, Kuninori Morimoto wrote: > > If we try to dereference card->dai_link without checking to see if it's > > set then we'll crash. > Ahh, do you mean we need like this ? > if (!card->name && card->dai_link) > card->name = card->dai_link->name; Yes, exactly.