--- drivers/rtc/rtc-ds1511.c
+++ drivers/rtc/rtc-ds1511.c
@@ -480,7 +480,7 @@ ds1511_nvram_write(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,