1 files changed, 17 insertions, 6 deletions

diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 31f172397af3..c856905bb3bd 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -3724,6 +3724,17 @@ rs_ioctl(struct tty_struct *tty, struct file * file,
                 return e100_enable_rs485(tty, &rs485data);
         }
 
+        case TIOCGRS485:
+        {
+                struct serial_rs485 *rs485data =
+                        &(((struct e100_serial *)tty->driver_data)->rs485);
+                /* This is the ioctl to get RS485 data from user-space */
+                if (copy_to_user((struct serial_rs485 *) arg,
+                                        rs485data,
+                                        sizeof(serial_rs485)))
+                        return -EFAULT;
+                break;
+        }
 
         case TIOCSERWRRS485:
         {
@@ -3924,7 +3935,6 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
          * Check R_DMA_CHx_STATUS bit 0-6=number of available bytes in FIFO
          * R_DMA_CHx_HWSW bit 31-16=nbr of bytes left in DMA buffer (0=64k)
          */
-        lock_kernel();
         orig_jiffies = jiffies;
         while (info->xmit.head != info->xmit.tail || /* More in send queue */
                (*info->ostatusadr & 0x007f) ||  /* more in FIFO */
@@ -3941,7 +3951,6 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
                         curr_time_usec - info->last_tx_active_usec;
         }
         set_current_state(TASK_RUNNING);
-        unlock_kernel();
 }
 
 /*
@@ -3981,7 +3990,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
          */
         if (tty_hung_up_p(filp) ||
             (info->flags & ASYNC_CLOSING)) {
-                wait_event_interruptible(info->close_wait,
+                wait_event_interruptible_tty(info->close_wait,
                         !(info->flags & ASYNC_CLOSING));
 #ifdef SERIAL_DO_RESTART
                 if (info->flags & ASYNC_HUP_NOTIFY)
@@ -4057,7 +4066,9 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
                 printk("block_til_ready blocking: ttyS%d, count = %d\n",
                        info->line, info->count);
 #endif
+                tty_unlock();
                 schedule();
+                tty_lock();
         }
         set_current_state(TASK_RUNNING);
         remove_wait_queue(&info->open_wait, &wait);
@@ -4139,7 +4150,7 @@ rs_open(struct tty_struct *tty, struct file * filp)
          */
         if (tty_hung_up_p(filp) ||
             (info->flags & ASYNC_CLOSING)) {
-                wait_event_interruptible(info->close_wait,
+                wait_event_interruptible_tty(info->close_wait,
                         !(info->flags & ASYNC_CLOSING));
 #ifdef SERIAL_DO_RESTART
                 return ((info->flags & ASYNC_HUP_NOTIFY) ?
@@ -4522,8 +4533,8 @@ static int __init rs_init(void)
                 INIT_WORK(&info->work, do_softint);
 
                 if (info->enabled) {
-                        printk(KERN_INFO "%s%d at 0x%x is a builtin UART with DMA\n",
-                               serial_driver->name, info->line, (unsigned int)info->ioport);
+                        printk(KERN_INFO "%s%d at %p is a builtin UART with DMA\n",
+                               serial_driver->name, info->line, info->ioport);
                 }
         }
 #ifdef CONFIG_ETRAX_FAST_TIMER