From 124da1da5cd3ac85edd7f0e30f61ee842d49a6a4 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Mon, 9 Mar 2009 08:59:01 +1000
Subject: [PATCH] Xi: don't crash on a NULL property name, just return None.

strcmp doesn't like NULL-pointers.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 0d9a42dc0380d1583889b6b6521bd5a2451735d4)
---
 Xi/xiproperty.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Xi/xiproperty.c b/Xi/xiproperty.c
index 5aec6f872..26af3fc00 100644
--- a/Xi/xiproperty.c
+++ b/Xi/xiproperty.c
@@ -58,11 +58,17 @@ static long XIPropHandlerID = 1;
 /**
  * Return the type assigned to the specified atom or 0 if the atom isn't known
  * to the DIX.
+ *
+ * If name is NULL, None is returned.
  */
 _X_EXPORT Atom
 XIGetKnownProperty(char *name)
 {
     int i;
+
+    if (!name)
+        return None;
+
     for (i = 0; i < (sizeof(dev_properties)/sizeof(struct dev_properties)); i++)
     {
         if (strcmp(name, dev_properties[i].name) == 0)