[PATCH] USB: tiglusb: replace schedule_timeout() with msleep_interruptible()

Description: Use msleep_interruptible() instead of schedule_timeout() to
guarantee the task delays as expected.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/usb/misc/tiglusb.c

@@ -116,8 +116,7 @@ tiglusb_open (struct inode *inode, struct file *filp)
 			return -EBUSY;
 		}
 
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout (HZ / 2);
+		msleep_interruptible(500);
 
 		if (signal_pending (current)) {
 			return -EAGAIN;