diff options
| author | Peter Hutterer <peter.hutterer@who-t.net> | 2009-06-07 19:26:45 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2009-06-07 20:35:14 +1000 |
| commit | 9390b7a133b0e17bc4d303effb7a99ff7017b086 (patch) | |
| tree | 46a098faaa71796a28ac5cb57d597fd2768d648c | |
| parent | 21ee53060b4dcb5c12074cf6682ff0067021ff60 (diff) | |
dix: protect against missing ButtonClasses in GetPointerMapping.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
| -rw-r--r-- | dix/devices.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/dix/devices.c b/dix/devices.c index eb54e0aff..3996ca64a 100644 --- a/dix/devices.c +++ b/dix/devices.c @@ -1724,10 +1724,11 @@ ProcGetPointerMapping(ClientPtr client) rep.type = X_Reply; rep.sequenceNumber = client->sequence; - rep.nElts = butc->numButtons; + rep.nElts = (butc) ? butc->numButtons : 0; rep.length = ((unsigned)rep.nElts + (4-1))/4; WriteReplyToClient(client, sizeof(xGetPointerMappingReply), &rep); - (void)WriteToClient(client, (int)rep.nElts, (char *)&butc->map[1]); + if (butc) + WriteToClient(client, (int)rep.nElts, (char *)&butc->map[1]); return Success; } |