fbdev: sh_mobile_lcdcfb: use sysfs_emit() to instead of scnprintf()

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
index 6d00893..ad9323e 100644 (file)
--- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
@@ -1188,7 +1188,7 @@ overlay_alpha_show(struct device *dev, struct device_attribute *attr, char *buf)
        struct fb_info *info = dev_get_drvdata(dev);
        struct sh_mobile_lcdc_overlay *ovl = info->par;
 
-       return scnprintf(buf, PAGE_SIZE, "%u\n", ovl->alpha);
+       return sysfs_emit(buf, "%u\n", ovl->alpha);
 }
 
 static ssize_t
@@ -1226,7 +1226,7 @@ overlay_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
        struct fb_info *info = dev_get_drvdata(dev);
        struct sh_mobile_lcdc_overlay *ovl = info->par;
 
-       return scnprintf(buf, PAGE_SIZE, "%u\n", ovl->mode);
+       return sysfs_emit(buf, "%u\n", ovl->mode);
 }
 
 static ssize_t
@@ -1265,7 +1265,7 @@ overlay_position_show(struct device *dev, struct device_attribute *attr,
        struct fb_info *info = dev_get_drvdata(dev);
        struct sh_mobile_lcdc_overlay *ovl = info->par;
 
-       return scnprintf(buf, PAGE_SIZE, "%d,%d\n", ovl->pos_x, ovl->pos_y);
+       return sysfs_emit(buf, "%d,%d\n", ovl->pos_x, ovl->pos_y);
 }
 
 static ssize_t
@@ -1306,7 +1306,7 @@ overlay_rop3_show(struct device *dev, struct device_attribute *attr, char *buf)
        struct fb_info *info = dev_get_drvdata(dev);
        struct sh_mobile_lcdc_overlay *ovl = info->par;
 
-       return scnprintf(buf, PAGE_SIZE, "%u\n", ovl->rop3);
+       return sysfs_emit(buf, "%u\n", ovl->rop3);
 }
 
 static ssize_t