[PATCH xserver] dix: Remove clients from input and output ready queues after closing

[Keith Packard]

Delay removing the client from these two queues until all potential
I/O has completed in case we mark the client as ready for reading or
with pending output during the close operation.

Bugzilla: https://bugs.freedesktop.org/100957
Signed-off-by: Keith Packard <keithp at keithp.com>
Tested-by: Nick Sarnie <commendsarnex at gmail.com>
---
 dix/dispatch.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dix/dispatch.c b/dix/dispatch.c
index a2df1e0e6..8b371b678 100644
--- a/dix/dispatch.c
+++ b/dix/dispatch.c
@@ -3414,7 +3414,6 @@ CloseDownClient(ClientPtr client)
         if (grabState != GrabNone && grabClient == client) {
             UngrabServer(client);
         }
-        mark_client_not_ready(client);
         BITCLEAR(grabWaiters, client->index);
         DeleteClientFromAnySelections(client);
         ReleaseActiveGrabs(client);
@@ -3443,8 +3442,9 @@ CloseDownClient(ClientPtr client)
         if (ClientIsAsleep(client))
             ClientSignal(client);
         ProcessWorkQueueZombies();
-        output_pending_clear(client);
         CloseDownConnection(client);
+        output_pending_clear(client);
+        mark_client_not_ready(client);
 
         /* If the client made it to the Running stage, nClients has
          * been incremented on its behalf, so we need to decrement it
-- 
2.11.0