pvalink: missing NULL check

epics-base · Apr 23, 2021 · d18e221 · d18e221
1 parent ff22538
commit d18e221
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/pdbApp/pvalink_link.cpp b/pdbApp/pvalink_link.cpp
@@ -89,7 +89,9 @@ pvd::PVField::const_shared_pointer pvaLink::getSubField(const char *name)
         } else {
             // we access a sub-struct
             ret = lchan->op_mon.root->getSubField(fieldName);
-            if(ret->getField()->getType()!=pvd::structure) {
+            if(!ret) {
+                // noop
+            } else if(ret->getField()->getType()!=pvd::structure) {
                 // addressed sub-field isn't a sub-structure
                 if(strcmp(name, "value")!=0) {
                     // unless we are trying to fetch the "value", we fail here