@JeremyB , thanks for the reply,
I’ve patched mcu.c as you’ve explained and rebuilt the kernel module but I still get the same error lines shown above in dmesg output (see the first post in this thread).
So, a question: how did you figure out which lines need to be commented? Have you found this patch somewhere or is that a result of your findings? Have you tested the patch on your hardware or what else?
Waiting for a reply, thanks.
P.S. I’ve patched the kernel following this thread: [HowTo] Build a (patched) kernel module