From 6318d8ef0f3ab2ab5975f3a26fa39aa534bb0bf2 Mon Sep 17 00:00:00 2001
From: Bart Warmerdam <Bart.Warmerdam@mail.ing.nl>
Date: Mon, 16 Dec 2013 13:52:50 +0100
Subject: [PATCH] Set lock when adding new displays to the chain

---
 sesman/session.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sesman/session.c b/sesman/session.c
index 888604da..eec36dfe 100644
--- a/sesman/session.c
+++ b/sesman/session.c
@@ -669,9 +669,15 @@ session_start_fork(int width, int height, int bpp, char *username,
         temp->item->type = type;
         temp->item->status = SESMAN_SESSION_STATUS_ACTIVE;
 
+        /*THREAD-FIX require chain lock */
+        lock_chain_acquire();
+
         temp->next = g_sessions;
         g_sessions = temp;
         g_session_count++;
+
+        /*THREAD-FIX release chain lock */
+        lock_chain_release();
     }
 
     return display;