pvalink: missing NULL check

2021-04-23 15:29:45 -07:00
parent ff22538129
commit d18e2219b3
1 changed files with 3 additions and 1 deletions
--- 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