drivers/char/synclink.c: unbreak mgsl_put_char()

Repair the effects of

commit 55da778
Author: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date:   Wed Apr 30 00:54:07 2008 -0700

    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>

drivers/char/synclink_gt.c: In function 'put_char':
drivers/char/synclink_gt.c:919: warning: 'ret' may be used uninitialized in this function

and do some whitespace repair and unneeded-cast-removal in there as well.

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

drivers/char/synclink.c

@@ -2028,13 +2028,13 @@ static void mgsl_change_params(struct mgsl_struct *info)
  */
 static int mgsl_put_char(struct tty_struct *tty, unsigned char ch)
 {
-	struct mgsl_struct *info = (struct mgsl_struct *)tty->driver_data;
+	struct mgsl_struct *info = tty->driver_data;
 	unsigned long flags;
-	int ret;
+	int ret = 0;
 
-	if ( debug_level >= DEBUG_LEVEL_INFO ) {
-		printk( "%s(%d):mgsl_put_char(%d) on %s\n",
-			__FILE__,__LINE__,ch,info->device_name);
+	if (debug_level >= DEBUG_LEVEL_INFO) {
+		printk("%s(%d):mgsl_put_char(%d) on %s\n",
+			__FILE__, __LINE__, ch, info->device_name);
 	}		
 
 	if (mgsl_paranoia_check(info, tty->name, "mgsl_put_char"))
@@ -2043,17 +2043,17 @@ static int mgsl_put_char(struct tty_struct *tty, unsigned char ch)
 	if (!tty || !info->xmit_buf)
 		return 0;
 
-	spin_lock_irqsave(&info->irq_spinlock,flags);
+	spin_lock_irqsave(&info->irq_spinlock, flags);
 
-	if ( (info->params.mode == MGSL_MODE_ASYNC ) || !info->tx_active ) {
+	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);
+	spin_unlock_irqrestore(&info->irq_spinlock, flags);
 	return ret;
 
 }	/* end of mgsl_put_char() */