diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 79f0ff94ce00..b297e3fafdf7 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -177,7 +177,7 @@ static struct tty_buffer *tty_buffer_alloc(struct
        */
       if (atomic_read(&port->buf.mem_used) > port->buf.mem_limit)
               return NULL;
-       p = kmalloc(struct_size(p, data, 2 * size), GFP_ATOMIC | __GFP_NOWARN);
+       p = kzalloc(struct_size(p, data, 2 * size), GFP_ATOMIC | __GFP_NOWARN);
       if (p == NULL)
               return NULL;