linux-kernel - [PATCH 1/2] asus_acpi: fix a memory leask in asus_hotk_get

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Message-Id: <1278291181.12801.2.camel@mola>
Date:	Mon, 05 Jul 2010 08:53:01 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Corentin Chary <corentincj@...aif.net>,
	Karol Kozimor <sziwan@...rs.sourceforge.net>,
	Matthew Garrett <mjg@...hat.com>,
	Len Brown <len.brown@...el.com>,
	Alan Jenkins <alan-jenkins@...fmail.co.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	acpi4asus-user@...ts.sourceforge.net,
	platform-driver-x86@...r.kernel.org
Subject: [PATCH 1/2] asus_acpi: fix a memory leask in asus_hotk_get_info

In the case of no match ( hotk->model == END_MODEL ), model sholud be
kfreed before return AE_OK.
This patch includes below fixes:
1. adds a missing kfree(model) before return AE_OK.
2. asus_hotk_get_info should return int, thus return 0 instead of AE_OK.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/platform/x86/asus_acpi.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c
index 92fd30c..ae0914d 100644
--- a/drivers/platform/x86/asus_acpi.c
+++ b/drivers/platform/x86/asus_acpi.c
@@ -1340,7 +1340,8 @@ static int asus_hotk_get_info(void)
 			return -ENODEV;
 		}
 		hotk->methods = &model_conf[hotk->model];
-		return AE_OK;
+		kfree(model);
+		return 0;
 	}
 	hotk->methods = &model_conf[hotk->model];
 	printk(KERN_NOTICE "  %s model detected, supported\n", string);
@@ -1374,7 +1375,7 @@ static int asus_hotk_get_info(void)
 
 	kfree(model);
 
-	return AE_OK;
+	return 0;
 }
 
 static int asus_hotk_check(void)
-- 
1.5.4.3



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