[libvirt] [PATCH 6/7] util: Resolve Coverity FORWARD_NULL

Coverity "believes" that virDBusMessageIterDecode could find "nstack = 0" in the first pass through the "for (;;)", thus break'ing out of the loop prior to any virDBusTypeStackPush being called thus having 'stack == NULL'. Rather than check for (!stack) prior to either the Encode or Decode path, putting a (!*stack) in the StackFree ensures we don't have some sort of NULL deref Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- src/util/virdbus.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/util/virdbus.c b/src/util/virdbus.c index 1cf1eef..78fb795 100644 --- a/src/util/virdbus.c +++ b/src/util/virdbus.c @@ -544,6 +544,10 @@ static void virDBusTypeStackFree(virDBusTypeStack **stack, size_t *nstack) { size_t i; + + if (!*stack) + return; + /* The iter in the first level of the stack is the * root iter which must not be freed */ -- 2.1.0