[PATCH 1/4] msi: Properly check GetTokenInformation() return values.

[Serge Gautherie]

Signed-off-by: Serge Gautherie 
---
 dlls/msi/registry.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/dlls/msi/registry.c b/dlls/msi/registry.c
index 4d439d0..f4a4286 100644
--- a/dlls/msi/registry.c
+++ b/dlls/msi/registry.c
@@ -426,13 +426,19 @@ static WCHAR *get_user_sid(void)
     }
     if (!GetTokenInformation( token, TokenUser, user, size, &size ))
     {
+        DWORD le = GetLastError();
         msi_free( user );
-        if (GetLastError() != ERROR_INSUFFICIENT_BUFFER || !(user = msi_alloc( size )))
+        if (le != ERROR_INSUFFICIENT_BUFFER || !(user = msi_alloc( size )))
         {
             CloseHandle( token );
             return NULL;
         }
-        GetTokenInformation( token, TokenUser, user, size, &size );
+        if (!GetTokenInformation( token, TokenUser, user, size, &size ))
+        {
+            msi_free( user );
+            CloseHandle( token );
+            return NULL;
+        }
     }
     CloseHandle( token );
     if (!ConvertSidToStringSidW( user->User.Sid, &ret ))