From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 25 Aug 2011 13:12:08 +0000 (+0200)
Subject: TTY: use tty_wait_until_sent_from_close in other drivers
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0b058353abfcdba4403af60f06998da590ebeffe;p=linux-beck.git

TTY: use tty_wait_until_sent_from_close in other drivers

Let's use the newly added helper to avoid stalls in drivers which are
not yet ported to tty_port helpers.

Those which are broken (call tty_wait_until_sent with irqs disabled)
are left untouched. They are in a deeper trouble than we are trying to
solve here. This includes amiserial, 68328serial, 68360serial and
crisv10.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index d8504279e502..e5546cb3ac69 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1693,7 +1693,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
 	 * line status register.
 	 */
 	if (info->flags & ISDN_ASYNC_INITIALIZED) {
-		tty_wait_until_sent(tty, 3000);	/* 30 seconds timeout */
+		tty_wait_until_sent_from_close(tty, 3000);	/* 30 seconds timeout */
 		/*
 		 * Before we drop DTR, make sure the UART transmitter
 		 * has completely drained; this is especially
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index e1aaf4f309b3..b6b2d18fa38d 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -388,7 +388,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
 		 * there is no buffered data otherwise sleeps on a wait queue
 		 * waking periodically to check chars_in_buffer().
 		 */
-		tty_wait_until_sent(tty, HVC_CLOSE_WAIT);
+		tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
 	} else {
 		if (hp->count < 0)
 			printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 4c8b66546930..e523773a5480 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1237,7 +1237,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
 		irq = hvcsd->vdev->irq;
 		spin_unlock_irqrestore(&hvcsd->lock, flags);
 
-		tty_wait_until_sent(tty, HVCS_CLOSE_WAIT);
+		tty_wait_until_sent_from_close(tty, HVCS_CLOSE_WAIT);
 
 		/*
 		 * This line is important because it tells hvcs_open that this
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 0464360781fe..1d3780cc3b70 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1292,7 +1292,8 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, msecs_to_jiffies(port->closing_wait));
+		tty_wait_until_sent_from_close(tty,
+				msecs_to_jiffies(port->closing_wait));
 
 	/*
 	 * At this point, we stop accepting input.  To do this, we
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index b3cc8b3989a9..253695d43fd9 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -551,7 +551,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
 	 */
 	tty->closing = 1;
 	if (self->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, self->closing_wait);
+		tty_wait_until_sent_from_close(tty, self->closing_wait);
 
 	ircomm_tty_shutdown(self);