Juan Lang : crypt32: Only destroy a decoded message's hash if it' s been created.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6f2ae254410b36a841d2ca9908e6d4dbd37dc511
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=6f2ae254410b36a841d2ca9908e6d4dbd37dc511

Author: Juan Lang <juan.lang at gmail.com>
Date:   Fri Jul 27 10:58:52 2007 -0700

crypt32: Only destroy a decoded message's hash if it's been created.

---

 dlls/crypt32/msg.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/dlls/crypt32/msg.c b/dlls/crypt32/msg.c
index bca4040..f554c78 100644
--- a/dlls/crypt32/msg.c
+++ b/dlls/crypt32/msg.c
@@ -1255,7 +1255,8 @@ static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
     switch (msg->type)
     {
     case CMSG_HASHED:
-        CryptDestroyHash(msg->u.hash);
+        if (msg->u.hash)
+            CryptDestroyHash(msg->u.hash);
         break;
     case CMSG_SIGNED:
         LocalFree(msg->u.signedInfo);