util/interval-tree: suppress cppcheck warnings

Warning was:
src/util-port-interval-tree.c:50:1: warning: Either the condition 'tmp!=NULL' is redundant or there is possible null pointer dereference: tmp. [nullPointerRedundantCheck]
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Assuming that condition 'tmp!=NULL' is not redundant
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Null pointer dereference
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: warning: Either the condition 'oleft!=NULL' is redundant or there is possible null pointer dereference: oleft. [nullPointerRedundantCheck]
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Assuming that condition 'oleft!=NULL' is not redundant
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Null pointer dereference
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: warning: Either the condition 'oright!=NULL' is redundant or there is possible null pointer dereference: oright. [nullPointerRedundantCheck]
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Assuming that condition 'oright!=NULL' is not redundant
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Null pointer dereference
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: warning: Either the condition 'left!=NULL' is redundant or there is possible null pointer dereference: left. [nullPointerRedundantCheck]
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Assuming that condition 'left!=NULL' is not redundant
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^
src/util-port-interval-tree.c:50:1: note: Null pointer dereference
IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
^

src/util-port-interval-tree.c

@@ -47,6 +47,7 @@ static int SCPortIntervalCompareAndUpdate(const SCPortIntervalNode *a, SCPortInt
     SCReturnInt(-1);
 }
 
+// cppcheck-suppress nullPointerRedundantCheck
 IRB_GENERATE(PI, SCPortIntervalNode, irb, SCPortIntervalCompareAndUpdate);
 
 /**