Hans Leidekker : kerberos: Fix parameter check in kerberos_SpUnsealMessage.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e1bef53ebb7f82364aaf1eeb3345fad3dc195703
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=e1bef53ebb7f82364aaf1eeb3...

Author: Hans Leidekker <hans(a)codeweavers.com>
Date:   Fri Feb  2 12:20:24 2018 +0100

kerberos: Fix parameter check in kerberos_SpUnsealMessage.

Signed-off-by: Hans Leidekker <hans(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/kerberos/krb5_ap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/kerberos/krb5_ap.c b/dlls/kerberos/krb5_ap.c
index 0345469..d2280e5 100644
--- a/dlls/kerberos/krb5_ap.c
+++ b/dlls/kerberos/krb5_ap.c
@@ -1339,7 +1339,7 @@ static NTSTATUS NTAPI kerberos_SpUnsealMessage( LSA_SEC_HANDLE context, SecBuffe
     TRACE( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
     if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
 
-    if (context) return SEC_E_INVALID_HANDLE;
+    if (!context) return SEC_E_INVALID_HANDLE;
     ctxt_handle = ctxthandle_sspi_to_gss( context );
 
     if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;