video: omapfb: Use sysfs_emit() instead of snprintf()

Commit Message

Guo Zhengkui Nov. 19, 2021, 7:31 a.m. UTC

Use sysfs_emit() instead of snprintf().

Signed-off-by: Guo Zhengkui <[e-mail]>
---
 drivers/video/fbdev/omap/omapfb_main.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

Patch

diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index b495c09e6102..083388a4ceeb 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -16,6 +16,7 @@ 
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
+#include <linux/sysfs.h>
 
 #include <linux/omap-dma.h>
 
@@ -1303,7 +1304,7 @@  static ssize_t omapfb_show_panel_name(struct device *dev,
 {
 	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
+	return sysfs_emit(buf, "%s\n", fbdev->panel->name);
 }
 
 static ssize_t omapfb_show_bklight_level(struct device *dev,
@@ -1314,8 +1315,8 @@  static ssize_t omapfb_show_bklight_level(struct device *dev,
 	int r;
 
 	if (fbdev->panel->get_bklight_level) {
-		r = snprintf(buf, PAGE_SIZE, "%d\n",
-			     fbdev->panel->get_bklight_level(fbdev->panel));
+		r = sysfs_emit(buf, "%d\n",
+			       fbdev->panel->get_bklight_level(fbdev->panel));
 	} else
 		r = -ENODEV;
 	return r;
@@ -1348,8 +1349,8 @@  static ssize_t omapfb_show_bklight_max(struct device *dev,
 	int r;
 
 	if (fbdev->panel->get_bklight_level) {
-		r = snprintf(buf, PAGE_SIZE, "%d\n",
-			     fbdev->panel->get_bklight_max(fbdev->panel));
+		r = sysfs_emit(buf, "%d\n",
+			       fbdev->panel->get_bklight_max(fbdev->panel));
 	} else
 		r = -ENODEV;
 	return r;
@@ -1379,7 +1380,7 @@  static ssize_t omapfb_show_ctrl_name(struct device *dev,
 {
 	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
+	return sysfs_emit(buf, "%s\n", fbdev->ctrl->name);
 }
 
 static struct device_attribute dev_attr_ctrl_name =