checkpatch reminds us that statics shouldn't be zero-initialized:

ERROR: do not initialise statics to 0 or NULL
#35: FILE: vl.c:157:
+static int num_serial_hds = 0;

ERROR: do not initialise statics to 0 or NULL
#36: FILE: vl.c:158:
+static Chardev **serial_hds = NULL;

I forgot to fix this in 6af2692e86f9fdfb3d; do so now.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180426140253.3918-1-peter.maydell@linaro.org
---
 vl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vl.c b/vl.c
index b3426e03d09..d451f45dc59 100644
--- a/vl.c
+++ b/vl.c
@@ -151,8 +151,8 @@ QEMUClockType rtc_clock;
 int vga_interface_type = VGA_NONE;
 static DisplayOptions dpy;
 int no_frame;
-static int num_serial_hds = 0;
-static Chardev **serial_hds = NULL;
+static int num_serial_hds;
+static Chardev **serial_hds;
 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
 int win2k_install_hack = 0;
-- 
2.17.1