[Qemu-commits] [COMMIT 41b5e89] qdev: don't crash on unset drive properties.

[Anthony Liguori]

From: Gerd Hoffmann <address@hidden>

Signed-off-by: Gerd Hoffmann <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index c4fb15c..5c627fa 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -208,7 +208,7 @@ static int parse_drive(DeviceState *dev, Property *prop, 
const char *str)
 static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t 
len)
 {
     DriveInfo **ptr = qdev_get_prop_ptr(dev, prop);
-    return snprintf(dest, len, "%s", (*ptr)->id);
+    return snprintf(dest, len, "%s", (*ptr) ? (*ptr)->id : "<null>");
 }
 
 PropertyInfo qdev_prop_drive = {