Fixed ==/!= mismatch.

diff --git a/dlls/winmm/wineoss/audio.c b/dlls/winmm/wineoss/audio.c
index a04f542..5656ef8 100644
--- a/dlls/winmm/wineoss/audio.c
+++ b/dlls/winmm/wineoss/audio.c
@@ -210,7 +210,7 @@
             WARN("Mismatch in access...\n");
             return -1;
         }
-        if (GetCurrentThreadId() == OSS_OwnerThreadID)
+        if (GetCurrentThreadId() != OSS_OwnerThreadID)
         {
             WARN("Another thread is trying to access audio...\n");
             return -1;