diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 6c7e65b1d9a1..5df7e66c4d2f 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -174,7 +174,7 @@ static struct tty_buffer *tty_buffer_alloc(struct tty_port *port, size_t size)
 	 */
 	if (atomic_read(&port->buf.mem_used) > port->buf.mem_limit)
 		return NULL;
-	p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC);
+	p = kzalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC);
 	if (p == NULL)
 		return NULL;