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[libvirt] [PATCH] util: Cleanup error path for virPolkitAgentCreate

More fallout from changing to using virPolkitAgent and handling error
paths.  Needed to clear the 'cmd' once stored and of course add the
virCommandFree(cmd) in the error: label.

Signed-off-by: John Ferlan <jferlan redhat com>

Found by coverity...
Pushed as trivial...

 src/util/virpolkit.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/util/virpolkit.c b/src/util/virpolkit.c
index 44f2328..2038744 100644
--- a/src/util/virpolkit.c
+++ b/src/util/virpolkit.c
@@ -182,6 +182,7 @@ virPolkitAgentCreate(void)
     if (VIR_ALLOC(agent) < 0)
         goto error;
     agent->cmd = cmd;
+    cmd = NULL;
     virCommandAddArgFormat(cmd, "%lld", (long long int) getpid());
     virCommandAddArg(cmd, "--notify-fd");
@@ -206,6 +207,7 @@ virPolkitAgentCreate(void)
+    virCommandFree(cmd);
     return NULL;

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