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TTY/Serial fixes for 4.20-rc2

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Here are some small tty fixes for 4.20-rc2
 
 One of these missed the original 4.19-final release, I missed that I
 hadn't done a pull request for it as it was in linux-next and my branch
 for a long time, that's my fault.
 
 The others are small, fixing some reported issues and finally fixing the
 termios mess for alpha so that glibc has a chance to implement some
 missing functionality that has been pending for many years now.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Merge tag 'tty-4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some small tty fixes for 4.20-rc2

  One of these missed the original 4.19-final release, I missed that I
  hadn't done a pull request for it as it was in linux-next and my
  branch for a long time, that's my fault.

  The others are small, fixing some reported issues and finally fixing
  the termios mess for alpha so that glibc has a chance to implement
  some missing functionality that has been pending for many years now.

  All of these have been in linux-next with no reported issues"

* tag 'tty-4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: sh-sci: Fix could not remove dev_attr_rx_fifo_timeout
  arch/alpha, termios: implement BOTHER, IBSHIFT and termios2
  termios, tty/tty_baudrate.c: fix buffer overrun
  vt: fix broken display when running aptitude
  serial: sh-sci: Fix receive on SCIFA/SCIFB variants with DMA
This commit is contained in:
Linus Torvalds 2018-11-10 13:32:14 -06:00
commit e255aee5b6
6 changed files with 36 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

8
drivers/tty/serial/sh-sci.c
View file

@ -1614,10 +1614,10 @@ static void sci_request_dma(struct uart_port *port)
hrtimer_init(&s->rx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
s->rx_timer.function = rx_timer_fn;
s->chan_rx_saved = s->chan_rx = chan;
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
sci_submit_rx(s);
s->chan_rx_saved = s->chan_rx = chan;
}
}
@ -3102,6 +3102,7 @@ static struct uart_driver sci_uart_driver = {
static int sci_remove(struct platform_device *dev)
{
struct sci_port *port = platform_get_drvdata(dev);
unsigned int type = port->port.type; /* uart_remove_... clears it */
sci_ports_in_use &= ~BIT(port->port.line);
uart_remove_one_port(&sci_uart_driver, &port->port);
@ -3112,8 +3113,7 @@ static int sci_remove(struct platform_device *dev)
sysfs_remove_file(&dev->dev.kobj,
&dev_attr_rx_fifo_trigger.attr);
}
if (port->port.type == PORT_SCIFA || port->port.type == PORT_SCIFB ||
port->port.type == PORT_HSCIF) {
if (type == PORT_SCIFA || type == PORT_SCIFB || type == PORT_HSCIF) {
sysfs_remove_file(&dev->dev.kobj,
&dev_attr_rx_fifo_timeout.attr);
}

4
drivers/tty/tty_baudrate.c
View file

@ -77,7 +77,7 @@ speed_t tty_termios_baud_rate(struct ktermios *termios)
else
cbaud += 15;
}
return baud_table[cbaud];
return cbaud >= n_baud_table ? 0 : baud_table[cbaud];
}
EXPORT_SYMBOL(tty_termios_baud_rate);
@ -113,7 +113,7 @@ speed_t tty_termios_input_baud_rate(struct ktermios *termios)
else
cbaud += 15;
}
return baud_table[cbaud];
return cbaud >= n_baud_table ? 0 : baud_table[cbaud];
#else /* IBSHIFT */
return tty_termios_baud_rate(termios);
#endif /* IBSHIFT */

2
drivers/tty/vt/vt.c
View file

@ -1548,7 +1548,7 @@ static void csi_K(struct vc_data *vc, int vpar)
scr_memsetw(start + offset, vc->vc_video_erase_char, 2 * count);
vc->vc_need_wrap = 0;
if (con_should_update(vc))
do_update_region(vc, (unsigned long) start, count);
do_update_region(vc, (unsigned long)(start + offset), count);
}
static void csi_X(struct vc_data *vc, int vpar) /* erase the following vpar positions */