Security-55179.1.tar.gz

[apple/security.git] / libsecurity_cdsa_client / lib / macclient.cpp

diff --git a/libsecurity_cdsa_client/lib/macclient.cpp b/libsecurity_cdsa_client/lib/macclient.cpp
index 38c8b6a7f4dc24c4bf44aaa940342134f4a7a00a..1fdc177ab0130a88e9fcc89d4ecad5a2a447f209 100644 (file)
--- a/libsecurity_cdsa_client/lib/macclient.cpp
+++ b/libsecurity_cdsa_client/lib/macclient.cpp
@@ -29,6 +29,7 @@ using namespace CssmClient;
 //
 void MacContext::activate()
 {
+    StLock<Mutex> _(mActivateMutex);
        if (!mActive) 
        {
                check(CSSM_CSP_CreateMacContext(attachment()->handle(), mAlgorithm,