Merge 6.5-rc4 into tty-next

We need the serial/tty fixes in here as well for testing and future
development.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

7 files changed, 11 insertions, 14 deletions

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index b411a26cc092..1cdefac4dd1b 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -3070,8 +3070,10 @@ static void gsm_cleanup_mux(struct gsm_mux *gsm, bool disc)
 		gsm->has_devices = false;
 	}
 	for (i = NUM_DLCI - 1; i >= 0; i--)
-		if (gsm->dlci[i])
+		if (gsm->dlci[i]) {
 			gsm_dlci_release(gsm->dlci[i]);
+			gsm->dlci[i] = NULL;
+		}
 	mutex_unlock(&gsm->mutex);
 	/* Now wipe the queues */
 	tty_ldisc_flush(gsm->tty);
diff --git a/drivers/tty/serial/8250/8250_dwlib.c b/drivers/tty/serial/8250/8250_dwlib.c
index 75f32f054ebb..84843e204a5e 100644
--- a/drivers/tty/serial/8250/8250_dwlib.c
+++ b/drivers/tty/serial/8250/8250_dwlib.c
@@ -244,7 +244,7 @@ void dw8250_setup_port(struct uart_port *p)
 	struct dw8250_port_data *pd = p->private_data;
 	struct dw8250_data *data = to_dw8250_data(pd);
 	struct uart_8250_port *up = up_to_u8250p(p);
-	u32 reg;
+	u32 reg, old_dlf;
 
 	pd->hw_rs485_support = dw8250_detect_rs485_hw(p);
 	if (pd->hw_rs485_support) {
@@ -270,9 +270,11 @@ void dw8250_setup_port(struct uart_port *p)
 	dev_dbg(p->dev, "Designware UART version %c.%c%c\n",
 		(reg >> 24) & 0xff, (reg >> 16) & 0xff, (reg >> 8) & 0xff);
 
+	/* Preserve value written by firmware or bootloader  */
+	old_dlf = dw8250_readl_ext(p, DW_UART_DLF);
 	dw8250_writel_ext(p, DW_UART_DLF, ~0U);
 	reg = dw8250_readl_ext(p, DW_UART_DLF);
-	dw8250_writel_ext(p, DW_UART_DLF, 0);
+	dw8250_writel_ext(p, DW_UART_DLF, old_dlf);
 
 	if (reg) {
 		pd->dlf_size = fls(reg);
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index f96fc8a8e67f..3ca5db294be3 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -1685,13 +1685,6 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	/*
-	 * Set pm_runtime status as ACTIVE so that wakeup_irq gets
-	 * enabled/disabled from dev_pm_arm_wake_irq during system
-	 * suspend/resume respectively.
-	 */
-	pm_runtime_set_active(&pdev->dev);
-
 	if (port->wakeup_irq > 0) {
 		device_init_wakeup(&pdev->dev, true);
 		ret = dev_pm_set_dedicated_wake_irq(&pdev->dev,
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 115271d2f82d..a560b729fa3b 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -589,7 +589,7 @@ static void sci_start_tx(struct uart_port *port)
 	    dma_submit_error(s->cookie_tx)) {
 		if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE)
 			/* Switch irq from SCIF to DMA */
-			disable_irq(s->irqs[SCIx_TXI_IRQ]);
+			disable_irq_nosync(s->irqs[SCIx_TXI_IRQ]);
 
 		s->cookie_tx = 0;
 		schedule_work(&s->work_tx);
diff --git a/drivers/tty/serial/sifive.c b/drivers/tty/serial/sifive.c
index 6d2685ca4602..3ac9fbd0226e 100644
--- a/drivers/tty/serial/sifive.c
+++ b/drivers/tty/serial/sifive.c
@@ -811,7 +811,7 @@ static void sifive_serial_console_write(struct console *co, const char *s,
 	local_irq_restore(flags);
 }
 
-static int __init sifive_serial_console_setup(struct console *co, char *options)
+static int sifive_serial_console_setup(struct console *co, char *options)
 {
 	struct sifive_serial_port *ssp;
 	int baud = SIFIVE_DEFAULT_BAUD_RATE;
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 284b293fade6..49457be37b3f 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -60,7 +60,7 @@ static int firmware_loaded;
 /* #define LOOPBACK */
 
 /* The major and minor device numbers are defined in
- * http://www.lanana.org/docs/device-list/devices-2.6+.txt.  For the QE
+ * Documentation/admin-guide/devices.txt.  For the QE
  * UART, we have major number 204 and minor numbers 46 - 49, which are the
  * same as for the CPM2.  This decision was made because no Freescale part
  * has both a CPM and a QE.
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index e23e416aae93..eb4e2e0e300d 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2283,7 +2283,7 @@ static int tiocsti(struct tty_struct *tty, char __user *p)
 	char ch, mbz = 0;
 	struct tty_ldisc *ld;
 
-	if (!tty_legacy_tiocsti)
+	if (!tty_legacy_tiocsti && !capable(CAP_SYS_ADMIN))
 		return -EIO;
 
 	if ((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN))