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media: mc-device.c: use DEVICE_ATTR_RO() helper macro 

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

Due to the name of the read function of the sysfs attribute is normalized,
there is a natural association.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Zhen Lei 2021-06-03 09:12:49 +02:00 committed by Mauro Carvalho Chehab
parent 1536fbdbcb
commit 7b537f290a
1 changed files with 2 additions and 2 deletions
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4
drivers/media/mc/mc-device.c
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@ -556,7 +556,7 @@ static const struct media_file_operations media_device_fops = {
* sysfs
*/
static ssize_t show_model(struct device *cd,
static ssize_t model_show(struct device *cd,
struct device_attribute *attr, char *buf)
{
struct media_devnode *devnode = to_media_devnode(cd);
@ -565,7 +565,7 @@ static ssize_t show_model(struct device *cd,
return sprintf(buf, "%.*s\n", (int)sizeof(mdev->model), mdev->model);
}
static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
static DEVICE_ATTR_RO(model);
/* -----------------------------------------------------------------------------
* Registration/unregistration