synclink series: switch to int put_char method

[linux-2.6-omap-h63xx.git] / drivers / char / synclink.c

diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index dbbd998ae103ad032b1718e259a5855a6d9190a9..4fbfff7a442e1555d73c64fb7ed105e1dad052bf 100644 (file)
--- 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() */