[PATCH] iio: humidity: htu21: Fix SYMBOLIC_PERMS chekcpatch warning

[Adi Nata <adinata.softwareengineer@gmail.com>]

Checkpatch warning:

WARNING:SYMBOLIC_PERMS: Symbolic permissions 'S_IRUGO' are not preferred. Consider using octal permissions '0444'.
+static IIO_DEVICE_ATTR(battery_low, S_IRUGO,

WARNING:SYMBOLIC_PERMS: Symbolic permissions 'S_IRUGO | S_IWUSR' are not preferred. Consider using octal permissions '0644'.
+static IIO_DEVICE_ATTR(heater_enable, S_IRUGO | S_IWUSR,

Signed-off-by: Adi Nata <adinata.softwareengineer@gmail.com>
---
 drivers/iio/humidity/htu21.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/humidity/htu21.c b/drivers/iio/humidity/htu21.c
index a9dbf08b4f1a..fe7192d142ec 100644
--- a/drivers/iio/humidity/htu21.c
+++ b/drivers/iio/humidity/htu21.c
@@ -154,9 +154,9 @@ static ssize_t htu21_write_heater(struct device *dev,
 }
 
 static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(htu21_show_samp_freq);
-static IIO_DEVICE_ATTR(battery_low, S_IRUGO,
+static IIO_DEVICE_ATTR(battery_low, 0444,
 		       htu21_show_battery_low, NULL, 0);
-static IIO_DEVICE_ATTR(heater_enable, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(heater_enable, 0644,
 		       htu21_show_heater, htu21_write_heater, 0);
 
 static struct attribute *htu21_attributes[] = {
-- 
2.47.3