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From: Markus Armbruster <armbru@redhat.com>
Date: Tue,  8 Nov 2011 11:00:38 +0100
Message-Id: <1320746438-31756-1-git-send-email-armbru@redhat.com>
Subject: [Qemu-devel] [PATCH] qdev: Fix crash on -device '?=x'
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Spotted by Coverity.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/qdev.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/hw/qdev.c b/hw/qdev.c
index 50976dd..106407f 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -186,7 +186,7 @@ int qdev_device_help(QemuOpts *opts)
         return 1;
     }
 
-    if (!qemu_opt_get(opts, "?")) {
+    if (!driver || !qemu_opt_get(opts, "?")) {
         return 0;
     }
 
-- 
1.7.6.4