rtc: switch wakealarm attribute to DEVICE_ATTR_RW

Instead of using older style DEVICE_ATTR for wakealarm attribute let's
switch to using DEVICE_ATTR_RW that ensures consistent across the kernel
permissions on the attribute.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
index 2fbc11b..e3ce1dc 100644 (file)
--- a/drivers/rtc/rtc-sysfs.c
+++ b/drivers/rtc/rtc-sysfs.c
@@ -134,8 +134,7 @@ static struct attribute *rtc_attrs[] = {
 ATTRIBUTE_GROUPS(rtc);
 
 static ssize_t
-rtc_sysfs_show_wakealarm(struct device *dev, struct device_attribute *attr,
-               char *buf)
+wakealarm_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
        ssize_t retval;
        unsigned long alarm;
@@ -159,7 +158,7 @@ rtc_sysfs_show_wakealarm(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t
-rtc_sysfs_set_wakealarm(struct device *dev, struct device_attribute *attr,
+wakealarm_store(struct device *dev, struct device_attribute *attr,
                const char *buf, size_t n)
 {
        ssize_t retval;
@@ -221,8 +220,7 @@ rtc_sysfs_set_wakealarm(struct device *dev, struct device_attribute *attr,
        retval = rtc_set_alarm(rtc, &alm);
        return (retval < 0) ? retval : n;
 }
-static DEVICE_ATTR(wakealarm, S_IRUGO | S_IWUSR,
-               rtc_sysfs_show_wakealarm, rtc_sysfs_set_wakealarm);
+static DEVICE_ATTR_RW(wakealarm);
 
 
 /* The reason to trigger an alarm with no process watching it (via sysfs)