dix: ensure work queues are cleared on reset

If the server resets, most client workqueues are cleaned up as the
clients are killed.

The one exception is the server's client, which is exempt from
the killing spree.

If that client has a queued work procedure active, it won't get
cleared on reset.

This commit ensures it gets cleared too.

1 files changed, 13 insertions, 0 deletions

diff --git a/dix/dixutils.c b/dix/dixutils.c
index 540023cbd..2983174a1 100644
--- a/dix/dixutils.c
+++ b/dix/dixutils.c
@@ -508,6 +508,19 @@ WorkQueuePtr workQueue;
 static WorkQueuePtr *workQueueLast = &workQueue;
 
 void
+ClearWorkQueue(void)
+{
+    WorkQueuePtr q, *p;
+
+    p = &workQueue;
+    while ((q = *p)) {
+        *p = q->next;
+        free(q);
+    }
+    workQueueLast = p;
+}
+
+void
 ProcessWorkQueue(void)
 {
     WorkQueuePtr q, *p;