1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index 721904f8efa9..946ddd2b3a54 100644
--- a/drivers/tty/serial/8250/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -193,7 +193,8 @@ static int __init parse_options(struct early_serial8250_device *device,
         if (options) {
                 options++;
                 device->baud = simple_strtoul(options, NULL, 0);
-                length = min(strcspn(options, " "), sizeof(device->options));
+                length = min(strcspn(options, " ") + 1,
+                             sizeof(device->options));
                 strlcpy(device->options, options, length);
         } else {
                 device->baud = probe_baud(port);