From 2f794840af4d776bbc35fbfacfe73127e4d61c33 Mon Sep 17 00:00:00 2001
From: Juan Lang <juan.lang@gmail.com>
Date: Thu, 20 Sep 2007 18:31:33 -0700
Subject: [PATCH] Set last error on invalid input
---
 dlls/setupapi/devinst.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/dlls/setupapi/devinst.c b/dlls/setupapi/devinst.c
index 92fc56b..f117bb5 100644
--- a/dlls/setupapi/devinst.c
+++ b/dlls/setupapi/devinst.c
@@ -1108,7 +1108,10 @@ BOOL WINAPI SetupDiEnumDeviceInfo(
     TRACE("%p %d %p\n", devinfo, index, info);
 
     if(info==NULL)
+    {
+        SetLastError(ERROR_INVALID_PARAMETER);
         return FALSE;
+    }
     if (devinfo && devinfo != (HDEVINFO)INVALID_HANDLE_VALUE)
     {
         struct DeviceInfoSet *list = (struct DeviceInfoSet *)devinfo;
-- 
1.4.1