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[Qemu-devel] [PATCH 3/5] qdev: don't crash on unset drive properties.


From: Gerd Hoffmann
Subject: [Qemu-devel] [PATCH 3/5] qdev: don't crash on unset drive properties.
Date: Tue, 22 Sep 2009 13:53:20 +0200

Signed-off-by: Gerd Hoffmann <address@hidden>
---
 hw/qdev-properties.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index 2ecb58d..edacf35 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -180,7 +180,7 @@ 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 = {
-- 
1.6.2.5





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