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 <[e-mail]>
Signed-off-by: Helge Deller <[e-mail]>

drivers/video/fbdev/sh_mobile_lcdcfb.c

···
 	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
···
 	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
···
 	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
···
 	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