diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index 0913d79424d3..c4094c4e22c1 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -587,6 +587,8 @@ static int lp_do_ioctl(unsigned int minor, unsigned int cmd,
 		return -ENODEV;
 	switch ( cmd ) {
 		case LPTIME:
+			if (arg > UINT_MAX / HZ)
+				return -EINVAL;
 			LP_TIME(minor) = arg * HZ/100;
 			break;
 		case LPCHAR: