>> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/drivers/cpufreq/armada-8k-cpufreq.c?id=05d08e2995cbe6efdb993482ee0d38a77040861a#n137 > > Thank you for your comments. > Adding a null pointer check here is indeed safer. I wonder then why such a return value check was omitted so far. > However, the purpose of series of patches is to add missing of_node_put > to avoid memory leaks. A few lines might become also more interesting besides these source code places. > So after that, we will also add a null pointer check later. Would we like to develop another script for the semantic patch language to detect similarly questionable implementation details? Regards, Markus