5 files changed, 22 insertions, 67 deletions

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index ad41319d1d9..28b35ad9c6c 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -150,10 +150,6 @@ struct pl011_dmatx_data {
 struct uart_amba_port {
 	struct uart_port	port;
 	struct clk		*clk;
-	/* Two optional pin states - default & sleep */
-	struct pinctrl		*pinctrl;
-	struct pinctrl_state	*pins_default;
-	struct pinctrl_state	*pins_sleep;
 	const struct vendor_data *vendor;
 	unsigned int		dmacr;		/* dma control reg */
 	unsigned int		im;		/* interrupt mask */
@@ -1479,12 +1475,7 @@ static int pl011_hwinit(struct uart_port *port)
 	int retval;
 
 	/* Optionaly enable pins to be muxed in and configured */
-	if (!IS_ERR(uap->pins_default)) {
-		retval = pinctrl_select_state(uap->pinctrl, uap->pins_default);
-		if (retval)
-			dev_err(port->dev,
-				"could not set default pins\n");
-	}
+	pinctrl_pm_select_default_state(port->dev);
 
 	/*
 	 * Try to enable the clock producer.
@@ -1610,7 +1601,6 @@ static void pl011_shutdown(struct uart_port *port)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int cr;
-	int retval;
 
 	/*
 	 * disable all interrupts
@@ -1653,13 +1643,7 @@ static void pl011_shutdown(struct uart_port *port)
 	 */
 	clk_disable_unprepare(uap->clk);
 	/* Optionally let pins go into sleep states */
-	if (!IS_ERR(uap->pins_sleep)) {
-		retval = pinctrl_select_state(uap->pinctrl, uap->pins_sleep);
-		if (retval)
-			dev_err(port->dev,
-				"could not set pins to sleep state\n");
-	}
-
+	pinctrl_pm_select_sleep_state(port->dev);
 
 	if (uap->port.dev->platform_data) {
 		struct amba_pl011_data *plat;
@@ -2012,12 +1996,7 @@ static int __init pl011_console_setup(struct console *co, char *options)
 		return -ENODEV;
 
 	/* Allow pins to be muxed in and configured */
-	if (!IS_ERR(uap->pins_default)) {
-		ret = pinctrl_select_state(uap->pinctrl, uap->pins_default);
-		if (ret)
-			dev_err(uap->port.dev,
-				"could not set default pins\n");
-	}
+	pinctrl_pm_select_default_state(uap->port.dev);
 
 	ret = clk_prepare(uap->clk);
 	if (ret)
@@ -2131,21 +2110,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 		goto out;
 	}
 
-	uap->pinctrl = devm_pinctrl_get(&dev->dev);
-	if (IS_ERR(uap->pinctrl)) {
-		ret = PTR_ERR(uap->pinctrl);
-		goto out;
-	}
-	uap->pins_default = pinctrl_lookup_state(uap->pinctrl,
-						 PINCTRL_STATE_DEFAULT);
-	if (IS_ERR(uap->pins_default))
-		dev_err(&dev->dev, "could not get default pinstate\n");
-
-	uap->pins_sleep = pinctrl_lookup_state(uap->pinctrl,
-					       PINCTRL_STATE_SLEEP);
-	if (IS_ERR(uap->pins_sleep))
-		dev_dbg(&dev->dev, "could not get sleep pinstate\n");
-
 	uap->clk = devm_clk_get(&dev->dev, NULL);
 	if (IS_ERR(uap->clk)) {
 		ret = PTR_ERR(uap->clk);
diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index e266eca0ec7..4a82267af83 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -1252,13 +1252,8 @@ static int serial_hsu_resume(struct pci_dev *pdev)
 #ifdef CONFIG_PM_RUNTIME
 static int serial_hsu_runtime_idle(struct device *dev)
 {
-	int err;
-
-	err = pm_schedule_suspend(dev, 500);
-	if (err)
-		return -EBUSY;
-
-	return 0;
+	pm_schedule_suspend(dev, 500);
+	return -EBUSY;
 }
 
 static int serial_hsu_runtime_suspend(struct device *dev)
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index 9799d043a9b..ee7c8123c37 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -1377,7 +1377,7 @@ static int __init tegra_uart_init(void)
 
 	ret = platform_driver_register(&tegra_uart_platform_driver);
 	if (ret < 0) {
-		pr_err("Uart platfrom driver register failed, e = %d\n", ret);
+		pr_err("Uart platform driver register failed, e = %d\n", ret);
 		uart_unregister_driver(&tegra_uart_driver);
 		return ret;
 	}
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 5f68f2cfdfd..d5cc3acecfd 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -44,6 +44,7 @@
 #include <linux/uaccess.h>
 #include <linux/moduleparam.h>
 #include <linux/jiffies.h>
+#include <linux/syscalls.h>
 
 #include <asm/ptrace.h>
 #include <asm/irq_regs.h>
@@ -586,6 +587,7 @@ struct sysrq_state {
 
 	/* reset sequence handling */
 	bool reset_canceled;
+	bool reset_requested;
 	unsigned long reset_keybit[BITS_TO_LONGS(KEY_CNT)];
 	int reset_seq_len;
 	int reset_seq_cnt;
@@ -624,18 +626,26 @@ static void sysrq_parse_reset_sequence(struct sysrq_state *state)
 	state->reset_seq_version = sysrq_reset_seq_version;
 }
 
-static void sysrq_do_reset(unsigned long dummy)
+static void sysrq_do_reset(unsigned long _state)
 {
-	__handle_sysrq(sysrq_xlate[KEY_B], false);
+	struct sysrq_state *state = (struct sysrq_state *) _state;
+
+	state->reset_requested = true;
+
+	sys_sync();
+	kernel_restart(NULL);
 }
 
 static void sysrq_handle_reset_request(struct sysrq_state *state)
 {
+	if (state->reset_requested)
+		__handle_sysrq(sysrq_xlate[KEY_B], false);
+
 	if (sysrq_reset_downtime_ms)
 		mod_timer(&state->keyreset_timer,
 			jiffies + msecs_to_jiffies(sysrq_reset_downtime_ms));
 	else
-		sysrq_do_reset(0);
+		sysrq_do_reset((unsigned long)state);
 }
 
 static void sysrq_detect_reset_sequence(struct sysrq_state *state,
@@ -837,7 +847,8 @@ static int sysrq_connect(struct input_handler *handler,
 	sysrq->handle.handler = handler;
 	sysrq->handle.name = "sysrq";
 	sysrq->handle.private = sysrq;
-	setup_timer(&sysrq->keyreset_timer, sysrq_do_reset, 0);
+	setup_timer(&sysrq->keyreset_timer,
+		    sysrq_do_reset, (unsigned long)sysrq);
 
 	error = input_register_handle(&sysrq->handle);
 	if (error) {
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index d7799deacb2..14a2b5f11bc 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -188,22 +188,7 @@ static loff_t vcs_lseek(struct file *file, loff_t offset, int orig)
 	console_unlock();
 	if (size < 0)
 		return size;
-	switch (orig) {
-		default:
-			return -EINVAL;
-		case 2:
-			offset += size;
-			break;
-		case 1:
-			offset += file->f_pos;
-		case 0:
-			break;
-	}
-	if (offset < 0 || offset > size) {
-		return -EINVAL;
-	}
-	file->f_pos = offset;
-	return file->f_pos;
+	return fixed_size_llseek(file, offset, orig, size);
 }