Changeset 9863 for ps

Timestamp:

07/17/11 21:19:33 (13 years ago)

Author:

Jan Wassenberg

Message:

avoid warning when running a second instance and Mahaf is enabled

File:

• ps/trunk/source/lib/sysdep/os/win/mahaf.cpp (modified) (1 diff)

ps/trunk/source/lib/sysdep/os/win/mahaf.cpp

@@ -348 +348 @@
         if(hAken == INVALID_HANDLE_VALUE)
         {
-            ENSURE(GetLastError() == ERROR_FILE_NOT_FOUND);
+            // GetLastError() is ERROR_FILE_NOT_FOUND if the driver isn't running,
+            // but this is also reached when a handle has already been opened
+            // (e.g. by a second instance of the same program) - in which case we must
+            // indicate failure so that clients won't engage in unsynchronized ring 0 operations.
             SetLastError(0);
             return ERR::INVALID_HANDLE; // NOWARN (happens often due to security restrictions)