avoid returning dangling ref in ServerInfo::GetDefault()

1 files changed, 3 insertions, 2 deletions

diff --git a/pulse.h b/pulse.h
index 32dfe25..a825d62 100644
--- a/pulse.h
+++ b/pulse.h
@@ -112,15 +112,16 @@ class Card {
 struct ServerInfo {
   string sink;
   string source;
+  string empty = "";
 
-  const string GetDefault(enum DeviceType type) {
+  const string& GetDefault(enum DeviceType type) {
     switch (type) {
     case DEVTYPE_SINK:
       return sink;
     case DEVTYPE_SOURCE:
       return source;
     default:
-      return "";
+      return empty;
     }
   }
 };