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Merge 4.5-rc4 into tty-next

Browse source 
We want the fixes in here, and this resolves a merge error in tty_io.c

Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Greg Kroah-Hartman 2016-02-14 14:36:04 -08:00
commit 249f3c4fe4
734 changed files with 6587 additions and 56895 deletions
Download patch file Download diff file Expand all files Collapse all files

21
drivers/tty/pty.c
View file

@ -663,7 +663,14 @@ static int pty_unix98_install(struct tty_driver *driver, struct tty_struct *tty)
/* this is called once with whichever end is closed last */
static void pty_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
{
devpts_kill_index(tty->driver_data, tty->index);
struct inode *ptmx_inode;
if (tty->driver->subtype == PTY_TYPE_MASTER)
ptmx_inode = tty->driver_data;
else
ptmx_inode = tty->link->driver_data;
devpts_kill_index(ptmx_inode, tty->index);
devpts_del_ref(ptmx_inode);
}
static const struct tty_operations ptm_unix98_ops = {
@ -753,6 +760,18 @@ static int ptmx_open(struct inode *inode, struct file *filp)
set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */
tty->driver_data = inode;
/*
* In the case where all references to ptmx inode are dropped and we
* still have /dev/tty opened pointing to the master/slave pair (ptmx
* is closed/released before /dev/tty), we must make sure that the inode
* is still valid when we call the final pty_unix98_shutdown, thus we
* hold an additional reference to the ptmx inode. For the same /dev/tty
* last close case, we also need to make sure the super_block isn't
* destroyed (devpts instance unmounted), before /dev/tty is closed and
* on its release devpts_kill_index is called.
*/
devpts_add_ref(inode);
tty_add_file(tty, filp);
slave_inode = devpts_pty_new(inode,

21
drivers/tty/serial/8250/8250_pci.c
View file

@ -1919,6 +1919,7 @@ pci_wch_ch38x_setup(struct serial_private *priv,
#define PCIE_VENDOR_ID_WCH 0x1c00
#define PCIE_DEVICE_ID_WCH_CH382_2S1P 0x3250
#define PCIE_DEVICE_ID_WCH_CH384_4S 0x3470
#define PCIE_DEVICE_ID_WCH_CH382_2S 0x3253
#define PCI_VENDOR_ID_PERICOM 0x12D8
#define PCI_DEVICE_ID_PERICOM_PI7C9X7951 0x7951
@ -2605,6 +2606,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch353_setup,
},
/* WCH CH382 2S card (16850 clone) */
{
.vendor = PCIE_VENDOR_ID_WCH,
.device = PCIE_DEVICE_ID_WCH_CH382_2S,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch38x_setup,
},
/* WCH CH382 2S1P card (16850 clone) */
{
.vendor = PCIE_VENDOR_ID_WCH,
@ -2923,6 +2932,7 @@ enum pci_board_num_t {
pbn_fintek_4,
pbn_fintek_8,
pbn_fintek_12,
pbn_wch382_2,
pbn_wch384_4,
pbn_pericom_PI7C9X7951,
pbn_pericom_PI7C9X7952,
@ -3743,6 +3753,13 @@ static struct pciserial_board pci_boards[] = {
.base_baud = 115200,
.first_offset = 0x40,
},
[pbn_wch382_2] = {
.flags = FL_BASE0,
.num_ports = 2,
.base_baud = 115200,
.uart_offset = 8,
.first_offset = 0xC0,
},
[pbn_wch384_4] = {
.flags = FL_BASE0,
.num_ports = 4,
@ -5542,6 +5559,10 @@ static struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_b0_bt_2_115200 },
{ PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_wch382_2 },
{ PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S,
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_wch384_4 },

10
drivers/tty/serial/omap-serial.c
View file

@ -1165,7 +1165,7 @@ serial_omap_type(struct uart_port *port)
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
static void wait_for_xmitr(struct uart_omap_port *up)
static void __maybe_unused wait_for_xmitr(struct uart_omap_port *up)
{
unsigned int status, tmout = 10000;
@ -1343,7 +1343,7 @@ static inline void serial_omap_add_console_port(struct uart_omap_port *up)
/* Enable or disable the rs485 support */
static int
serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485)
{
struct uart_omap_port *up = to_uart_omap_port(port);
unsigned int mode;
@ -1356,8 +1356,12 @@ serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
up->ier = 0;
serial_out(up, UART_IER, 0);
/* Clamp the delays to [0, 100ms] */
rs485->delay_rts_before_send = min(rs485->delay_rts_before_send, 100U);
rs485->delay_rts_after_send = min(rs485->delay_rts_after_send, 100U);
/* store new config */
port->rs485 = *rs485conf;
port->rs485 = *rs485;
/*
* Just as a precaution, only allow rs485

7
drivers/tty/tty_mutex.c
View file

@ -21,10 +21,15 @@ EXPORT_SYMBOL(tty_lock);
int tty_lock_interruptible(struct tty_struct *tty)
{
int ret;
if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
return -EIO;
tty_kref_get(tty);
return mutex_lock_interruptible(&tty->legacy_mutex);
ret = mutex_lock_interruptible(&tty->legacy_mutex);
if (ret)
tty_kref_put(tty);
return ret;
}
void tty_unlock(struct tty_struct *tty)