Use DEVICE_ATTR_RW helper instead of plain DEVICE_ATTR,
which makes the code a bit shorter and easier to read.

Signed-off-by: YueHaibing <redacted>
---
  drivers/devfreq/governor_userspace.c | 10 +++++-----
  1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/devfreq/governor_userspace.c b/drivers/devfreq/governor_userspace.c
index 0fd6c4851071..ab9db7adb3ad 100644
--- a/drivers/devfreq/governor_userspace.c
+++ b/drivers/devfreq/governor_userspace.c

@@ -31,8 +31,8 @@ static int devfreq_userspace_func(struct devfreq *df, unsigned long *freq)
  	return 0;
  }
  
-static ssize_t store_freq(struct device *dev, struct device_attribute *attr,
-			  const char *buf, size_t count)
+static ssize_t set_freq_store(struct device *dev, struct device_attribute *attr,
+			      const char *buf, size_t count)
  {
  	struct devfreq *devfreq = to_devfreq(dev);
  	struct userspace_data *data;

@@ -52,8 +52,8 @@ static ssize_t store_freq(struct device *dev, struct device_attribute *attr,
  	return err;
  }
  
-static ssize_t show_freq(struct device *dev, struct device_attribute *attr,
-			 char *buf)
+static ssize_t set_freq_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
  {
  	struct devfreq *devfreq = to_devfreq(dev);
  	struct userspace_data *data;

@@ -70,7 +70,7 @@ static ssize_t show_freq(struct device *dev, struct device_attribute *attr,
  	return err;
  }
  
-static DEVICE_ATTR(set_freq, 0644, show_freq, store_freq);
+static DEVICE_ATTR_RW(set_freq);
  static struct attribute *dev_entries[] = {
  	&dev_attr_set_freq.attr,
  	NULL,