From: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Date: Mon, 9 Jul 2007 09:03:00 +0000 (+0200)
Subject: Don't crash X when the tablet wasn't found.
X-Git-Url: http://gitweb.freedesktop.org/?p=xorg/driver/xf86-input-acecad.git;a=commitdiff;h=171d4c8dc6136aa8c14aedd0ee107d6ba957de04

Don't crash X when the tablet wasn't found.

X would crash when switching to console if the acecad module was loaded but the tablet had not been configured.

Fix by properly freeing structures before returning NULL in PreInit()
---

--- a/src/acecad.c
+++ b/src/acecad.c
@@ -488,8 +488,12 @@ SetupProc_fail:
         xf86CloseSerial (local->fd);
     if ((priv) && (priv->buffer))
         XisbFree (priv->buffer);
-    if (priv)
+    if (priv) {
         xfree (priv);
+	if (local)
+		local->private = NULL;
+    }
+    xf86DeleteInput(local, 0);
     return NULL;
 }