Commit 82b35f37 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'tty-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty 

Pull tty/serial driver fixes from Greg KH:
 "Here are a number of small serial and tty fixes for reported issues.

  All have been in linux-next successfully"

* tag 'tty-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection()
  serial: core: Fix crashes while echoing when closing
  m32r: Add ioreadXX/iowriteXX big-endian mmio accessors
  Revert "serial: imx: initialized DMA w/o HW flow enabled"
  sc16is7xx: fix FIFO address of secondary UART
  sc16is7xx: fix Kconfig dependencies
  serial: etraxfs-uart: Fix release etraxfs_uart_ports
  tty/vt: Fix the memory leak in visual_init
  serial: amba-pl011: Fix devm_ioremap_resource return value check
  n_tty: signal and flush atomically
parents b0de415a 61e86cc9

arch/m32r/include/asm/io.h

+5 −0
Original line number Diff line number Diff line
@@ -174,6 +174,11 @@ static inline void _writel(unsigned long l, unsigned long addr) 
#define iowrite16 writew

#define iowrite32 writel



#define ioread16be(addr)	be16_to_cpu(readw(addr))

#define ioread32be(addr)	be32_to_cpu(readl(addr))

#define iowrite16be(v, addr)	writew(cpu_to_be16(v), (addr))

#define iowrite32be(v, addr)	writel(cpu_to_be32(v), (addr))



#define mmiowb()



#define flush_write_buffers() do { } while (0)  /* M32R_FIXME */

drivers/tty/n_tty.c

+13 −3
Original line number Diff line number Diff line
@@ -1108,19 +1108,29 @@ static void eraser(unsigned char c, struct tty_struct *tty) 
 *	Locking: ctrl_lock

 */



static void isig(int sig, struct tty_struct *tty)

static void __isig(int sig, struct tty_struct *tty)

{

	struct n_tty_data *ldata = tty->disc_data;

	struct pid *tty_pgrp = tty_get_pgrp(tty);

	if (tty_pgrp) {

		kill_pgrp(tty_pgrp, sig, 1);

		put_pid(tty_pgrp);

	}

}



	if (!L_NOFLSH(tty)) {

static void isig(int sig, struct tty_struct *tty)

{

	struct n_tty_data *ldata = tty->disc_data;



	if (L_NOFLSH(tty)) {

		/* signal only */

		__isig(sig, tty);



	} else { /* signal and flush */

		up_read(&tty->termios_rwsem);

		down_write(&tty->termios_rwsem);



		__isig(sig, tty);



		/* clear echo buffer */

		mutex_lock(&ldata->output_lock);

		ldata->echo_head = ldata->echo_tail = 0;

drivers/tty/serial/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -1185,7 +1185,7 @@ config SERIAL_SC16IS7XX_CORE 
config SERIAL_SC16IS7XX

        tristate "SC16IS7xx serial support"

        select SERIAL_CORE

        depends on I2C || SPI_MASTER

        depends on (SPI_MASTER && !I2C) || I2C

        help

          This selects support for SC16IS7xx serial ports.

          Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,

drivers/tty/serial/amba-pl011.c

+2 −2
Original line number Diff line number Diff line
@@ -2310,8 +2310,8 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap, 
	void __iomem *base;



	base = devm_ioremap_resource(dev, mmiobase);

	if (!base)

		return -ENOMEM;

	if (IS_ERR(base))

		return PTR_ERR(base);



	index = pl011_probe_dt_alias(index, dev);

drivers/tty/serial/etraxfs-uart.c

+1 −1
Original line number Diff line number Diff line
@@ -950,7 +950,7 @@ static int etraxfs_uart_remove(struct platform_device *pdev) 


	port = platform_get_drvdata(pdev);

	uart_remove_one_port(&etraxfs_uart_driver, port);

	etraxfs_uart_ports[pdev->id] = NULL;

	etraxfs_uart_ports[port->line] = NULL;



	return 0;

}

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