virstring: Resolve Coverity FORWARD_NULL

Perhaps a false positive, but since Coverity doesn't understand the
relationship between the 'count' and the 'strings', rather than leave
the chance the on input 'strings' is NULL and causes a deref - just
check for it and return

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

diff --git a/src/util/virstring.c b/src/util/virstring.c
index b14f785f13312af61bf72d4d4b9c17626f586ed0..935f0c6755304f9f9ec2b0e8883232bfe5c34c26 100644 (file)
--- a/src/util/virstring.c
+++ b/src/util/virstring.c
@@ -198,6 +198,9 @@ virStringFreeListCount(char **strings,
 {
     size_t i;
 
+    if (!strings)
+        return;
+
     for (i = 0; i < count; i++)
         VIR_FREE(strings[i]);