CVS commit: [netbsd-9] src/sys/dev/usb

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Wed Aug  3 16:21:55 UTC 2022

Modified Files:
        src/sys/dev/usb [netbsd-9]: ucom.c

Log Message:
Pull up following revision(s) (requested by riastradh in ticket #1493):

        sys/dev/usb/ucom.c: revision 1.129

ucom(4): Fix earlier mistake causing pipes not to be closed.

In revision 1.123, mrg@ changed what he thought was a double-close,
but was actually abort&close (as is appropriate) to just abort (which
is not enough -- leaks the pipe).  This restores the abort&close.

The original `bug' was found by code inspection, whereas this bug was
found by asserting in usb_subr.c that no pipes are open on device
disconnection after detach; the asserts actually triggered with
several ucom(4) devices, and no longer trigger with this change.

XXX pullup-9


To generate a diff of this commit:
cvs rdiff -u -r1.125.2.1 -r1.125.2.2 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.