Juan Lang : crypt32: Don't fail if buffer is NULL, just return required size.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 53b7babcbbe88b8366e7bced3b11c0cec454fcc3
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=53b7babcbbe88b8366e7bced3b11c0cec454fcc3

Author: Juan Lang <juan.lang at gmail.com>
Date:   Thu Oct  4 14:53:11 2007 -0700

crypt32: Don't fail if buffer is NULL, just return required size.

---

 dlls/crypt32/cert.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/dlls/crypt32/cert.c b/dlls/crypt32/cert.c
index 9600bb1..13ef4d4 100644
--- a/dlls/crypt32/cert.c
+++ b/dlls/crypt32/cert.c
@@ -2037,7 +2037,9 @@ BOOL WINAPI CertGetValidUsages(DWORD cCerts, PCCERT_CONTEXT *rghCerts,
         }
         else
         {
-            if (!rghOIDs || *pcbOIDs < cbOIDs)
+            if (!rghOIDs)
+                *pcbOIDs = cbOIDs;
+            else if (*pcbOIDs < cbOIDs)
             {
                 *pcbOIDs = cbOIDs;
                 SetLastError(ERROR_MORE_DATA);