Fix for StormLib

3rdParty/StormLib/README

@@ -9,3 +9,4 @@ Implementation changes:
 * Use `stdcall` calling convention.
 * Use external Storm error handling (`SErrGetLastError()` etc.)
 * Convert pathnames to Unix-style slashes.
+* Bugfixes, with comment: // BUGFIX (devilutionX)

3rdParty/StormLib/src/FileStream.cpp

@@ -99,6 +99,7 @@ static bool BaseFile_Create(TFileStream * pStream)
         if(handle == -1)
         {
             nLastError = errno;
+            pStream->Base.File.hFile = INVALID_HANDLE_VALUE; // BUGFIX (devilutionX)
             return false;
         }
         
@@ -151,6 +152,7 @@ static bool BaseFile_Open(TFileStream * pStream, const TCHAR * szFileName, DWORD
         if(handle == -1)
         {
             nLastError = errno;
+            pStream->Base.File.hFile = INVALID_HANDLE_VALUE; // BUGFIX (devilutionX)
             return false;
         }
 
@@ -159,6 +161,7 @@ static bool BaseFile_Open(TFileStream * pStream, const TCHAR * szFileName, DWORD
         {
             nLastError = errno;
             close(handle);
+            pStream->Base.File.hFile = INVALID_HANDLE_VALUE; // BUGFIX (devilutionX)
             return false;
         }