From: Vasiliy Kulikov Subject: [PATCH 17/20] rtc: rtc-ds1511: world-writable sysfs nvram file Date: Fri, 4 Feb 2011 15:24:06 +0300 Don't allow everybogy to write to NVRAM. Signed-off-by: Vasiliy Kulikov --- Compile tested only. drivers/rtc/rtc-ds1511.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index 37268e9..afeb546 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -485,7 +485,7 @@ 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, -- 1.7.0.4