CVS commit: src/sys/dev/usb

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sun Mar  5 13:49:12 UTC 2023

Modified Files:
        src/sys/dev/usb: ucom.c

Log Message:
In the HUP-wait path in ucomopen():
- Use cv_timedwait() rather than cv_timedwait_sig(); the wait here is
  bounded (and fairly short besides) and seems appropriate to treat like
  other uninterruptible waits.  The behavior is now consistent with com(4)
  in this regard.
- Map EWOULDBLOCK return from cv_timedwait() to 0, as the successful passage
  of time is not an error in this case.
- If the HUP-wait time has passed, clear the HUP-wait timestamp.

kern/57259 (although insufficient -- another change to vfs_syscalls.c
is required)


To generate a diff of this commit:
cvs rdiff -u -r1.136 -r1.137 src/sys/dev/usb/ucom.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.