diff mbox series

[1/1] media: bttv: use DEVICE_ATTR_RO() helper macro

Message ID 20210603071009.11438-1-thunder.leizhen@huawei.com (mailing list archive)
State New, archived
Headers show
Series [1/1] media: bttv: use DEVICE_ATTR_RO() helper macro | expand

Commit Message

Leizhen (ThunderTown) June 3, 2021, 7:10 a.m. UTC 
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>
---
 drivers/media/pci/bt8xx/bttv-driver.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 1f62a9d8ea1d323..e2e77b335c1523e 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -170,14 +170,14 @@  MODULE_VERSION(BTTV_VERSION);
 /* ----------------------------------------------------------------------- */
 /* sysfs                                                                   */
 
-static ssize_t show_card(struct device *cd,
+static ssize_t card_show(struct device *cd,
 			 struct device_attribute *attr, char *buf)
 {
 	struct video_device *vfd = to_video_device(cd);
 	struct bttv *btv = video_get_drvdata(vfd);
 	return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
 }
-static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
+static DEVICE_ATTR_RO(card);
 
 /* ----------------------------------------------------------------------- */
 /* dvb auto-load setup                                                     */