synclink series: switch to int put_char method

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index dbbd998ae103..4fbfff7a442e 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -2026,10 +2026,11 @@ static void mgsl_change_params(struct mgsl_struct *info)
  *              
  * Return Value:        None
  */
-static void mgsl_put_char(struct tty_struct *tty, unsigned char ch)
+static int mgsl_put_char(struct tty_struct *tty, unsigned char ch)
 {
         struct mgsl_struct *info = (struct mgsl_struct *)tty->driver_data;
         unsigned long flags;
+        int ret;
 
         if ( debug_level >= DEBUG_LEVEL_INFO ) {
                 printk( "%s(%d):mgsl_put_char(%d) on %s\n",
@@ -2037,23 +2038,23 @@ static void mgsl_put_char(struct tty_struct *tty, unsigned char ch)
         }               
         
         if (mgsl_paranoia_check(info, tty->name, "mgsl_put_char"))
-                return;
+                return 0;
 
         if (!tty || !info->xmit_buf)
-                return;
+                return 0;
 
         spin_lock_irqsave(&info->irq_spinlock,flags);
         
         if ( (info->params.mode == MGSL_MODE_ASYNC ) || !info->tx_active ) {
-        
                 if (info->xmit_cnt < SERIAL_XMIT_SIZE - 1) {
                         info->xmit_buf[info->xmit_head++] = ch;
                         info->xmit_head &= SERIAL_XMIT_SIZE-1;
                         info->xmit_cnt++;
+                        ret = 1;
                 }
         }
-        
         spin_unlock_irqrestore(&info->irq_spinlock,flags);
+        return ret;
         
 }       /* end of mgsl_put_char() */