cppcheck and clang --analyze fixes

Signed-off-by: Thomas E. Dickey <dickey@invisible-island.net>

1 files changed, 7 insertions, 4 deletions

diff --git a/src/Object.c b/src/Object.c
index 178bcb5..f5cfb91 100644
--- a/src/Object.c
+++ b/src/Object.c
@@ -166,10 +166,13 @@ ConstructCallbackOffsets(WidgetClass myWidgetClass)
 
     /* Count the number of callbacks */
     resourceList = (XrmResourceList) myObjectClass->object_class.resources;
-    for (i = (int) myObjectClass->object_class.num_resources; --i >= 0;
-         resourceList++)
-        if (resourceList->xrm_type == QCallback)
-            tableSize++;
+    if (resourceList != NULL) {
+        for (i = (int) myObjectClass->object_class.num_resources; --i >= 0;
+             resourceList++) {
+            if (resourceList->xrm_type == QCallback)
+                tableSize++;
+        }
+    }
 
     /*
      * Allocate and load the table.  Make sure that the new callback