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authorJiri Slaby <jslaby@suse.cz>2011-08-25 15:12:08 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-25 09:00:42 -0700
commit0b058353abfcdba4403af60f06998da590ebeffe (patch)
tree6e4012e7b9f99b2772849edb15b65c1e3a8e2fed /drivers
parent424cc0391222695225632a3f2ccb0aed3e57b2e5 (diff)
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/isdn/i4l/isdn_tty.c2
-rw-r--r--drivers/tty/hvc/hvc_console.c2
-rw-r--r--drivers/tty/hvc/hvcs.c2
-rw-r--r--drivers/tty/serial/serial_core.c3
4 files changed, 5 insertions, 4 deletions
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