[reactos] 01/02: [USETUP] Check for invalid INF handles before doing operations.

[Hermès Bélusca-Maïto]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=9f1c8ac02013b07428665…

commit 9f1c8ac02013b0742866531cf7383c168b69857c
Author:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
AuthorDate: Sun Dec 23 16:53:39 2018 +0100
Commit:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
CommitDate: Sun Dec 23 20:37:13 2018 +0100

    [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 af18c491c1..98212975cb 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;