leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tty: moxa: fix TIOCSSERIAL jiffies conversions

Browse Source 
The port close_delay parameter set by TIOCSSERIAL is specified in
jiffies, while the value returned by TIOCGSERIAL is specified in
centiseconds.

Add the missing conversions so that TIOCGSERIAL works as expected also
when HZ is not 100.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407102334.32361-11-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2021-04-07 12:23:28 +02:00 committed by Greg Kroah-Hartman
parent c33a63e8dd
commit 6e70b73ca5
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/tty/moxa.c
View File

@ -2038,7 +2038,7 @@ static int moxa_get_serial_info(struct tty_struct *tty,
ss->line = info->port.tty->index,
ss->flags = info->port.flags,
ss->baud_base = 921600,
ss->close_delay = info->port.close_delay;
ss->close_delay = jiffies_to_msecs(info->port.close_delay) / 10;
mutex_unlock(&info->port.mutex);
return 0;
}
@ -2067,7 +2067,7 @@ static int moxa_set_serial_info(struct tty_struct *tty,
return -EPERM;
}
}
info->port.close_delay = ss->close_delay * HZ / 100;
info->port.close_delay = msecs_to_jiffies(ss->close_delay * 10);
MoxaSetFifo(info, ss->type == PORT_16550A);