From 80e3c2b659515ef236f33f691ff5b22ae90ae8e4 Mon Sep 17 00:00:00 2001
From: Ram Gupta <ram.gupta5@gmail.com>
Date: Mon, 14 Aug 2006 23:05:29 -0700
Subject: [PATCH] [SERIAL] returning proper error from serial core driver

Fix the issue of returning 0 even in case of error from uart_set_info
function.  Now it returns the error EBUSY when it can not set new port.

Signed-off-by: Ram Gupta <r.gupta@astronautics.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/serial/serial_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index d7e28ab4c313..d814bb1dcb05 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -792,6 +792,7 @@ static int uart_set_info(struct uart_state *state,
 			 * We failed anyway.
 			 */
 			retval = -EBUSY;
+			goto exit;  // Added to return the correct error -Ram Gupta
 		}
 	}