From 9f1c8ac02013b0742866531cf7383c168b69857c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Herm=C3=A8s=20B=C3=A9lusca-Ma=C3=AFto?=
 <hermes.belusca-maito@reactos.org>
Date: Sun, 23 Dec 2018 16:53:39 +0100
Subject: [PATCH] [USETUP] Check for invalid INF handles before doing
 operations.

---
 base/setup/usetup/spapisup/infsupp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/base/setup/usetup/spapisup/infsupp.c b/base/setup/usetup/spapisup/infsupp.c
index af18c491c15..98212975cb4 100644
--- a/base/setup/usetup/spapisup/infsupp.c
+++ b/base/setup/usetup/spapisup/infsupp.c
@@ -43,6 +43,8 @@ WINAPI
 SetupCloseInfFile(
     IN HINF InfHandle)
 {
+    if (InfHandle == INVALID_HANDLE_VALUE)
+        return;
     InfCloseFile(InfHandle);
 }
 
@@ -58,6 +60,9 @@ SetupFindFirstLineW(
     PINFCONTEXT pContext;
     BOOL ret;
 
+    if (InfHandle == INVALID_HANDLE_VALUE)
+        return FALSE;
+
     ret = InfFindFirstLine(InfHandle, Section, Key, &pContext);
     if (!ret)
         return FALSE;