Fix the following coccicheck warnings:
drivers/tty/vt/vt.c:3942:8-16:
WARNING: use scnprintf or sprintf
drivers/tty/vt/vt.c:3950:8-16:
WARNING: use scnprintf or sprintf

Signed-off-by: Xuezhi Zhang <zhangxuezhi1@coolpad.com>
---
 drivers/tty/vt/vt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index f8c87c4d7399..7ea7d14e9271 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3939,7 +3939,7 @@ static ssize_t show_bind(struct device *dev, struct device_attribute *attr,
 	bind = con_is_bound(con->con);
 	console_unlock();
 
-	return snprintf(buf, PAGE_SIZE, "%i\n", bind);
+	return sysfs_emit(buf, "%i\n", bind);
 }
 
 static ssize_t show_name(struct device *dev, struct device_attribute *attr,
@@ -3947,7 +3947,7 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr,
 {
 	struct con_driver *con = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%s %s\n",
+	return sysfs_emit(buf, "%s %s\n",
 			(con->flag & CON_DRIVER_FLAG_MODULE) ? "(M)" : "(S)",
 			 con->desc);
 
-- 
2.25.1