On 9/21/18 12:01 AM, Johannes Thumshirn wrote:
When sd_init_command() get's a with a unknown req_op() it crashes the system via BUG(). This makes debugging the actual reason for the broken request cmd_flags pretty hard as the system is down before it's able to write out debugging data on the serial console or the trace buffer. Change the BUG() to a WARN_ON() and return BLKPREP_KILL to fail gracefully and return an I/O error to the producer of the request.
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>