Merge branch 'android-3.10.y' into ndg-android

Conflicts:
	arch/x86/configs/i386_defconfig
	drivers/block/zram/zram_drv.h
	drivers/cpufreq/cpufreq_interactive.c
	drivers/gpu/drm/i915/intel_i2c.c
	drivers/gpu/drm/radeon/radeon_atombios.c
	drivers/misc/Kconfig
	drivers/misc/Makefile
	drivers/misc/uid_cputime.c
	drivers/mmc/card/block.c
	drivers/mmc/card/queue.h
	drivers/mmc/core/core.c
	drivers/platform/x86/intel_scu_ipcutil.c
	drivers/staging/android/ion/Kconfig
	drivers/staging/android/ion/ion_priv.h
	drivers/staging/android/ion/ion_system_heap.c
	drivers/staging/zram/Makefile
	drivers/staging/zram/zram_drv.c
	drivers/usb/host/xhci-ring.c
	drivers/usb/host/xhci.c
	drivers/usb/host/xhci.h
	fs/ext4/ext4.h
	fs/ext4/super.c
	fs/proc/task_mmu.c
	include/linux/wlan_plat.h
	net/wireless/nl80211.c
	security/selinux/avc.c
	security/selinux/hooks.c
	security/selinux/include/avc.h
	security/selinux/include/security.h
	security/selinux/ss/avtab.c
	security/selinux/ss/avtab.h
	security/selinux/ss/conditional.c
	security/selinux/ss/conditional.h
	security/selinux/ss/policydb.c
	security/selinux/ss/services.c
	security/selinux/ss/services.h
	sound/core/timer.c

Change-Id: Id6dd32677eda62a0cd94585cded643a3cecbaa61
Tracked-On: https://jira01.devtools.intel.com/browse/AW-1342
Signed-off-by: Louis Fabien <fabienx.louis@intel.com>
Signed-off-by: Victor Tasayco Loarte <victorx.tasayco.loarte@intel.com>

6 files changed, 51 insertions, 6 deletions

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 4fc32c8091e9..ff92155dbc88 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -299,11 +299,27 @@ static int xen_initial_domain_console_init(void)
 	return 0;
 }
 
+static void xen_console_update_evtchn(struct xencons_info *info)
+{
+	if (xen_hvm_domain()) {
+		uint64_t v;
+		int err;
+
+		err = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, &v);
+		if (!err && v)
+			info->evtchn = v;
+	} else
+		info->evtchn = xen_start_info->console.domU.evtchn;
+}
+
 void xen_console_resume(void)
 {
 	struct xencons_info *info = vtermno_to_xencons(HVC_COOKIE);
-	if (info != NULL && info->irq)
+	if (info != NULL && info->irq) {
+		if (!xen_initial_domain())
+			xen_console_update_evtchn(info);
 		rebind_evtchn_irq(info->evtchn, info->irq);
+	}
 }
 
 static void xencons_disconnect_backend(struct xencons_info *info)
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 7cb36813aac2..deee2b81afff 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -623,7 +623,14 @@ static void pty_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
 /* this is called once with whichever end is closed last */
 static void pty_unix98_shutdown(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 = {
@@ -714,6 +721,18 @@ 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,
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 345b5ddcb1a0..86281fa5dcc3 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -98,7 +98,10 @@ static void dw8250_serial_out(struct uart_port *p, int offset, int value)
 			dw8250_force_idle(p);
 			writeb(value, p->membase + (UART_LCR << p->regshift));
 		}
-		dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
 	}
 }
 
@@ -128,7 +131,10 @@ static void dw8250_serial_out32(struct uart_port *p, int offset, int value)
 			dw8250_force_idle(p);
 			writel(value, p->membase + (UART_LCR << p->regshift));
 		}
-		dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
 	}
 }
 
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 8d3c0b5e2878..98b8423793fd 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -68,7 +68,7 @@ static void moan_device(const char *str, struct pci_dev *dev)
 	       "Please send the output of lspci -vv, this\n"
 	       "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n"
 	       "manufacturer and name of serial board or\n"
-	       "modem board to rmk+serial@arm.linux.org.uk.\n",
+	       "modem board to <linux-serial@vger.kernel.org>.\n",
 	       pci_name(dev), str, dev->vendor, dev->device,
 	       dev->subsystem_vendor, dev->subsystem_device);
 }
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
index b3455a970a1d..ff5440570c6e 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -365,6 +365,11 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	/* Winbond CIR port, should not be probed. We should keep track
 	   of it to prevent the legacy serial driver from probing it */
 	{	"WEC1022",		CIR_PORT	},
+	/*
+	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
+	 * as well so its own driver can bind to it.
+	 */
+	{	"SMCF010",		CIR_PORT	},
 	{	"",			0	}
 };
 
diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index 39c7ea4cb14f..2225f83f4c04 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -262,7 +262,6 @@ static struct of_device_id of_platform_serial_table[] = {
 	{ .compatible = "ibm,qpace-nwp-serial",
 		.data = (void *)PORT_NWPSERIAL, },
 #endif
-	{ .type = "serial",         .data = (void *)PORT_UNKNOWN, },
 	{ /* end of list */ },
 };