cygwin: pthread_rwlock_rdlock: don't set errno, just return error code

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index 963c4017b7831a3cfcb4102318c87242d9eaed88..9099407737187c81beab09f1387372970782373e 100644 (file)
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -1426,7 +1426,7 @@ pthread_rwlock::rdlock (PLARGE_INTEGER timeout)
       if (reader->n < UINT32_MAX)
        ++reader->n;
       else
-       errno = EAGAIN;
+       result = EAGAIN;
       goto DONE;
     }