CVS commit: src/sys/kern

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Wed Aug 26 16:36:32 UTC 2020

Modified Files:
        src/sys/kern: tty.c

Log Message:
Add a check to prevent shift by -1. Not really important in this case,
but to appease KUBSAN.

Reported-by: syzbot+4026e8201b6b484b8cb4%syzkaller.appspotmail.com@localhost


To generate a diff of this commit:
cvs rdiff -u -r1.288 -r1.289 src/sys/kern/tty.c

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