[BUG] drivers/input/misc/pcap: a possible sleep-in-atomic bug in pcap_keys_handler

[Jia-Ju Bai]

According to drivers/input/misc/pcap_keys.c, the kernel module may sleep 
in the interrupt handler.
The function call path is:
pcap_keys_handler (interrupt handler)
  ezx_pcap_read
    mutex_lock --> may sleep

I do not find a good way to fix it, so I only report.
This possible bug is found by my static analysis tool (DSAC) and checked 
by my code review.


Thanks,
Jia-Ju Bai