[PATCH] serial/68360serial: replace schedule_timeout() with msleep_interruptible()

Use msleep_interruptible() instead of schedule_timeout() in send_break() to
guarantee the task delays as expected.  Change @duration's units to
milliseconds, and modify arguments in callers appropriately.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c
index f148022b6b4e..b116122e569a 100644
--- a/drivers/serial/68360serial.c
+++ b/drivers/serial/68360serial.c
@@ -1394,14 +1394,13 @@ static void end_break(ser_info_t *info)
 /*
  * This routine sends a break character out the serial port.
  */
-static void send_break(ser_info_t *info, int duration)
+static void send_break(ser_info_t *info, unsigned int duration)
 {
-        set_current_state(TASK_INTERRUPTIBLE);
 #ifdef SERIAL_DEBUG_SEND_BREAK
         printk("rs_send_break(%d) jiff=%lu...", duration, jiffies);
 #endif
         begin_break(info);
-        schedule_timeout(duration);
+        msleep_interruptible(duration);
         end_break(info);
 #ifdef SERIAL_DEBUG_SEND_BREAK
         printk("done jiffies=%lu\n", jiffies);
@@ -1436,7 +1435,7 @@ static int rs_360_ioctl(struct tty_struct *tty, struct file * file,
                         if (signal_pending(current))
                                 return -EINTR;
                         if (!arg) {
-                                send_break(info, HZ/4); /* 1/4 second */
+                                send_break(info, 250);  /* 1/4 second */
                                 if (signal_pending(current))
                                         return -EINTR;
                         }
@@ -1448,7 +1447,7 @@ static int rs_360_ioctl(struct tty_struct *tty, struct file * file,
                         tty_wait_until_sent(tty, 0);
                         if (signal_pending(current))
                                 return -EINTR;
-                        send_break(info, arg ? arg*(HZ/10) : HZ/4);
+                        send_break(info, arg ? arg*100 : 250);
                         if (signal_pending(current))
                                 return -EINTR;
                         return 0;