From 7aba2514b28de455ee3daef5f84424f4376a5d37 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Thu, 4 Jan 2024 10:31:51 +1000
Subject: [PATCH] dix: don't allow for devices with 0 axes

This just makes the existing behavior explicit, previously we relied on
a malloc(numAxes * ...) to return NULL to error out.
---
 dix/devices.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dix/devices.c b/dix/devices.c
index 3f3224d62..bdbe2dc73 100644
--- a/dix/devices.c
+++ b/dix/devices.c
@@ -1335,6 +1335,7 @@ InitValuatorClassDeviceStruct(DeviceIntPtr dev, int numAxes, Atom *labels,
     ValuatorClassPtr valc;
 
     BUG_RETURN_VAL(dev == NULL, FALSE);
+    BUG_RETURN_VAL(numAxes == 0, FALSE);
 
     if (numAxes > MAX_VALUATORS) {
         LogMessage(X_WARNING,