From 49d50fb1c28738ef6bad0c2b87d5355a1653fed5 Mon Sep 17 00:00:00 2001
From: Vasiliy Kulikov <segoon@openwall.com>
Date: Tue, 22 Mar 2011 16:34:53 -0700
Subject: [PATCH] drivers/rtc/rtc-ds1511.c: world-writable sysfs nvram file

Don't allow everybogy to write to NVRAM.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Cc: Andy Sharp <andy.sharp@onstor.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ds1511.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c
index 3fffd708711f..fbabc773dded 100644
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -468,7 +468,7 @@ ds1511_nvram_write(struct file *filp, struct kobject *kobj,
 static struct bin_attribute ds1511_nvram_attr = {
 	.attr = {
 		.name = "nvram",
-		.mode = S_IRUGO | S_IWUGO,
+		.mode = S_IRUGO | S_IWUSR,
 	},
 	.size = DS1511_RAM_MAX,
 	.read = ds1511_nvram_read,