linux-kernel - [PATCH 3.16.y-ckt 150/183] efi: Small leak on error in runtime map code

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Message-Id: <1425635874-19087-151-git-send-email-luis.henriques@canonical.com>
Date:	Fri,  6 Mar 2015 09:57:21 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Dan Carpenter <dan.carpenter@...cle.com>,
	Matt Fleming <matt.fleming@...el.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 150/183] efi: Small leak on error in runtime map code

3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 86d68a58d00db3770735b5919ef2c6b12d7f06f3 upstream.

The "> 0" here should ">= 0" so we free map_entries[0].

Fixes: 926172d46038 ('efi: Export EFI runtime memory mapping to sysfs')
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Dave Young <dyoung@...hat.com>
Signed-off-by: Matt Fleming <matt.fleming@...el.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/firmware/efi/runtime-map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c
index 97cdd16a2169..c98b101a73ae 100644
--- a/drivers/firmware/efi/runtime-map.c
+++ b/drivers/firmware/efi/runtime-map.c
@@ -170,7 +170,7 @@ int __init efi_runtime_map_init(struct kobject *efi_kobj)
 
 	return 0;
 out_add_entry:
-	for (j = i - 1; j > 0; j--) {
+	for (j = i - 1; j >= 0; j--) {
 		entry = *(map_entries + j);
 		kobject_put(&entry->kobj);
 	}
--
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