From 8d854a4830776aaacb70161709db315d54eb77f0 Mon Sep 17 00:00:00 2001
From: Austin English <austinenglish@gmail.com>
Date: Fri, 14 Mar 2014 19:45:19 -0400
Subject: [PATCH] setupapi: Make sure DeviceInterfaceData->cbSize is
 initialized in SetupDiEnumDeviceInterfaces.

---
 dlls/setupapi/devinst.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/setupapi/devinst.c b/dlls/setupapi/devinst.c
index 33dea82e7c6..ef56d2be300 100644
--- a/dlls/setupapi/devinst.c
+++ b/dlls/setupapi/devinst.c
@@ -2795,8 +2795,11 @@ BOOL WINAPI SetupDiEnumDeviceInterfaces(HDEVINFO DeviceInfoSet, PSP_DEVINFO_DATA
         SetLastError(ERROR_INVALID_PARAMETER);
         return FALSE;
     }
+
     /* In case application fails to check return value, clear output */
     memset(DeviceInterfaceData, 0, sizeof(*DeviceInterfaceData));
+    DeviceInterfaceData->cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
+
     if (DeviceInfoData)
     {
         struct DeviceInfo *devInfo =
-- 
2.11.4.GIT