mini-os: Fix a compilation error in xencons_ring when !HAVE_LIBC

Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>

diff --git a/extras/mini-os/console/xencons_ring.c b/extras/mini-os/console/xencons_ring.c
index 6d2814e4928cc1d304f1d39b847a0cd7eea994c2..bfe5cb663cf9f53dc39e2d900cfe42b8d802fdef 100644 (file)
--- a/extras/mini-os/console/xencons_ring.c
+++ b/extras/mini-os/console/xencons_ring.c
@@ -67,8 +67,8 @@ int xencons_ring_send(struct consfront_dev *dev, const char *data, unsigned len)
 
 static void handle_input(evtchn_port_t port, struct pt_regs *regs, void *data)
 {
-#ifdef HAVE_LIBC
        struct consfront_dev *dev = (struct consfront_dev *) data;
+#ifdef HAVE_LIBC
         int fd = dev ? dev->fd : -1;
 
         if (fd != -1)