X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;ds=sidebyside;f=rts%2FTask.c;h=e2f363b3210d83fc9e6220b7a2a09fd4e9a89947;hb=373978e7d6db47f318555397753b1d41064b1750;hp=2921e9e18137732e56f626bc83d08ca1cbd982d0;hpb=7effbbbbdfe7eb05c6402fa9337e358e7e9fadde;p=ghc-hetmet.git

diff --git a/rts/Task.c b/rts/Task.c
index 2921e9e..e2f363b 100644
--- a/rts/Task.c
+++ b/rts/Task.c
@@ -280,11 +280,12 @@ boundTaskExiting (Task *task)
 void
 discardTasksExcept (Task *keep)
 {
-    Task *task;
+    Task *task, *next;
 
     // Wipe the task list, except the current Task.
     ACQUIRE_LOCK(&sched_mutex);
-    for (task = all_tasks; task != NULL; task=task->all_link) {
+    for (task = all_tasks; task != NULL; task=next) {
+        next = task->all_link;
         if (task != keep) {
             debugTrace(DEBUG_sched, "discarding task %ld", (long)TASK_ID(task));
             freeTask(task);