[PATCH 1/1] media: exynos4-is: use DEVICE_ATTR_RW() helper macro

[Zhen Lei]

Use DEVICE_ATTR_RW() helper macro instead of DEVICE_ATTR(), which is
simpler and more readable.

Due to the names of the read and write functions of the sysfs attribute is
normalized, there is a natural association.

Signed-off-by: Zhen Lei <thunder.leizhen at huawei.com>
---
 drivers/media/platform/exynos4-is/media-dev.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 3b8a24bb724c8e9..fa648721eaab9a5 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -1238,8 +1238,8 @@ static const struct media_device_ops fimc_md_ops = {
 	.link_notify = fimc_md_link_notify,
 };
 
-static ssize_t fimc_md_sysfs_show(struct device *dev,
-				  struct device_attribute *attr, char *buf)
+static ssize_t subdev_conf_mode_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
 {
 	struct fimc_md *fmd = dev_get_drvdata(dev);
 
@@ -1249,9 +1249,9 @@ static ssize_t fimc_md_sysfs_show(struct device *dev,
 	return strscpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE);
 }
 
-static ssize_t fimc_md_sysfs_store(struct device *dev,
-				   struct device_attribute *attr,
-				   const char *buf, size_t count)
+static ssize_t subdev_conf_mode_store(struct device *dev,
+				      struct device_attribute *attr,
+				      const char *buf, size_t count)
 {
 	struct fimc_md *fmd = dev_get_drvdata(dev);
 	bool subdev_api;
@@ -1278,8 +1278,7 @@ static ssize_t fimc_md_sysfs_store(struct device *dev,
  *  sub-dev - for media controller API, subdevs must be configured in user
  *  space before starting streaming.
  */
-static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO,
-		   fimc_md_sysfs_show, fimc_md_sysfs_store);
+static DEVICE_ATTR_RW(subdev_conf_mode);
 
 static int cam_clk_prepare(struct clk_hw *hw)
 {
-- 
2.26.0.106.g9fadedd