From: Amol Lad <amol@verismonetworks.com>
Date: Sun, 1 Oct 2006 06:29:25 +0000 (-0700)
Subject: [PATCH] ioremap balanced with iounmap for drivers/serial/mux.c
X-Git-Tag: v2.6.19-rc1~507
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af907dc8cd4157d629e48533b3400786467340d5;p=linux-2.6

[PATCH] ioremap balanced with iounmap for drivers/serial/mux.c

ioremap must be balanced by an iounmap and failing to do so can result
in a memory leak.

Signed-off-by: Amol Lad <amol@verismonetworks.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index 4a1c9983f3..aa819d3f8e 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -521,6 +521,8 @@ static void __exit mux_exit(void)
 
 	for (i = 0; i < port_cnt; i++) {
 		uart_remove_one_port(&mux_driver, &mux_ports[i]);
+		if (mux_ports[i].membase)
+			iounmap(mux_ports[i].membase);
 	}
 
 	uart_unregister_driver(&mux_driver);