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Diffstat (limited to 'dix/devices.c')
-rw-r--r--dix/devices.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/dix/devices.c b/dix/devices.c
index 0ab9f37c2..85d899c20 100644
--- a/dix/devices.c
+++ b/dix/devices.c
@@ -2257,6 +2257,9 @@ ProcChangePointerControl(ClientPtr client)
REQUEST(xChangePointerControlReq);
REQUEST_SIZE_MATCH(xChangePointerControlReq);
+ /* If the device has no PtrFeedbackPtr, the xserver has a bug */
+ BUG_RETURN_VAL (!mouse->ptrfeed, BadImplementation);
+
ctrl = mouse->ptrfeed->ctrl;
if ((stuff->doAccel != xTrue) && (stuff->doAccel != xFalse)) {
client->errorValue = stuff->doAccel;