Fix potential segfault

1 files changed, 4 insertions, 2 deletions

diff --git a/server/src/admin_connection.cc b/server/src/admin_connection.cc
index 5a15a34..f761023 100644
--- a/server/src/admin_connection.cc
+++ b/server/src/admin_connection.cc
@@ -66,8 +66,10 @@ static std::string admin_listactivesessions(Environment &env)
     Session *s = NULL;
     SessionAutounlock l(&s);
     s = env.sessions.lockedSession(*i);
-    str += "Session " + *i + ": "+s->templ+" on "+s->patientid+" "+
-      std::string(s->idle()?"[idle]":"[active]")+"\n";
+    if(s) {
+      str += "Session " + *i + ": "+s->templ+" on "+s->patientid+" "+
+        std::string(s->idle()?"[idle]":"[active]")+"\n";
+    }
     i++;
   }