From: Amol Lad <amol@verismonetworks.com>
Date: Sun, 1 Oct 2006 06:29:21 +0000 (-0700)
Subject: [PATCH] ioremap balanced with iounmap for drivers/serial/ioc4_serial.c
X-Git-Tag: v2.6.19-rc1~511
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f4664132613caf40bfbf17b7e0ab3340a8b8f526;p=platform%2Fkernel%2Flinux-exynos.git

[PATCH] ioremap balanced with iounmap for drivers/serial/ioc4_serial.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>
Cc: Brent Casavant <bcasavan@sgi.com>
Cc: Pat Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c
index 576ca1e..5ec4716 100644
--- a/drivers/serial/ioc4_serial.c
+++ b/drivers/serial/ioc4_serial.c
@@ -2685,6 +2685,7 @@ static int ioc4_serial_remove_one(struct ioc4_driver_data *idd)
 	if (soft) {
 		free_irq(control->ic_irq, soft);
 		if (soft->is_ioc4_serial_addr) {
+			iounmap(soft->is_ioc4_serial_addr);
 			release_region((unsigned long)
 			     soft->is_ioc4_serial_addr,
 				sizeof(struct ioc4_serial));
@@ -2887,6 +2888,8 @@ out4:
 out3:
 	kfree(control);
 out2:
+	if (serial)
+		iounmap(serial);
 	release_region(tmp_addr1, sizeof(struct ioc4_serial));
 out1: