From a86094d6946b25dd593b5d36ba19b530a6d9afdc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Wed, 8 Apr 2020 19:23:48 +0200
Subject: [PATCH] qemu-dbus: prevent double start of the bus daemon
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Allow calling qemuDBusStart() multiple times (as may be done by
qemu-slirp already).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
 src/qemu/qemu_dbus.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/qemu/qemu_dbus.c b/src/qemu/qemu_dbus.c
index f3e6f3ee37..ae55bbb299 100644
--- a/src/qemu/qemu_dbus.c
+++ b/src/qemu/qemu_dbus.c
@@ -177,6 +177,9 @@ qemuDBusStart(virQEMUDriverPtr driver,
     pid_t cpid = -1;
     int ret = -1;
 
+    if (priv->dbusDaemonRunning)
+        return 0;
+
     if (!virFileIsExecutable(cfg->dbusDaemonName)) {
         virReportSystemError(errno,
                              _("'%s' is not a suitable dbus-daemon"),