iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

staging: fwserial: fix TIOCSSERIAL jiffies conversions

Browse Source 
commit 7a3791afdbd5a951b09a7689bba856bd9f6c6a9f upstream.

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.

Fixes: 7355ba3445f2 ("staging: fwserial: Add TTY-over-Firewire serial driver")
Cc: stable@vger.kernel.org      # 3.8
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407102334.32361-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2021-04-07 12:23:19 +02:00 committed by Greg Kroah-Hartman
parent eb3a757e0b
commit 6096118089
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/staging/fwserial/fwserial.c
View File

@ -1223,7 +1223,7 @@ static int get_serial_info(struct tty_struct *tty,
ss->flags = port->port.flags;
ss->xmit_fifo_size = FWTTY_PORT_TXFIFO_LEN;
ss->baud_base = 400000000;
ss->close_delay = port->port.close_delay;
ss->close_delay = jiffies_to_msecs(port->port.close_delay) / 10;
mutex_unlock(&port->port.mutex);
return 0;
}
@ -1245,7 +1245,7 @@ static int set_serial_info(struct tty_struct *tty,
return -EPERM;
}
}
port->port.close_delay = ss->close_delay * HZ / 100;
port->port.close_delay = msecs_to_jiffies(ss->close_delay * 10);
mutex_unlock(&port->port.mutex);
return 0;