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 yuehaibing@huawei.com --- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index e5662bdcbbde..a3a95a2c0bae 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -165,8 +165,8 @@ static void vidi_fake_vblank_timer(struct timer_list *t) jiffies + msecs_to_jiffies(VIDI_REFRESH_TIME) - 1); }

-static ssize_t vidi_show_connection(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t connection_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct vidi_context *ctx = dev_get_drvdata(dev); int rc; @@ -180,7 +180,7 @@ static ssize_t vidi_show_connection(struct device *dev, return rc; }

-static ssize_t vidi_store_connection(struct device *dev, +static ssize_t connection_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { @@ -211,8 +211,7 @@ static ssize_t vidi_store_connection(struct device *dev, return len; }

-static DEVICE_ATTR(connection, 0644, vidi_show_connection, - vidi_store_connection); +static DEVICE_ATTR_RW(connection);

static struct attribute *vidi_attrs[] = { &dev_attr_connection.attr,