c62aa65b2a
Since we take a lock when we enter the ioctl, we need to set driver_mtx in the pps structure so it can be dropped while sleeping during a call to timepps_fetch() with a non-zero timeout (PPS_CANWAIT feature). MFC After: 5 days Sponsored by: Netflix Reviewed by: ian Differential Revision: https://reviews.freebsd.org/D31763