[libvirt] [PATCH] qemu: fix bad free

[Eric Blake]

Commit bd56d0d8 could lead to freeing an uninitialized pointer:

qemu/qemu_monitor_json.c: In function 'qemuMonitorJSONGetCommandLineOptionParameters':
qemu/qemu_monitor_json.c:4284: warning: 'cmd' may be used uninitialized in this function

* src/qemu/qemu_monitor_json.c
(qemuMonitorJSONGetCommandLineOptionParameters): Initialize variable.

Signed-off-by: Eric Blake <eblake at redhat.com>
---

Pushing under the build-breaker rule (and I _really_ wish you didn't
have to use -O to make gcc raise this sort of warning)

 src/qemu/qemu_monitor_json.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 0c011d3..d95198b 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4281,7 +4281,7 @@ qemuMonitorJSONGetCommandLineOptionParameters(qemuMonitorPtr mon,
                                               char ***params)
 {
     int ret;
-    virJSONValuePtr cmd;
+    virJSONValuePtr cmd = NULL;
     virJSONValuePtr reply = NULL;
     virJSONValuePtr data = NULL;
     virJSONValuePtr array = NULL;
-- 
1.8.1.4