drivers/char/synclink_gt.c: don't return an uninitialised local

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

The compiler speaketh truth.

Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 2001b0e..55c1653 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -916,7 +916,7 @@
 {
 	struct slgt_info *info = tty->driver_data;
 	unsigned long flags;
-	int ret;
+	int ret = 0;
 
 	if (sanity_check(info, tty->name, "put_char"))
 		return 0;