From 2c11d40478cf330abc3a3b45658cd1dbc0fc9de0 Mon Sep 17 00:00:00 2001
From: mturk <mturk@13f79535-47bb-0310-9956-ffa450edef68>
Date: Tue, 24 Apr 2018 07:14:11 +0000
Subject: Unlock mutex only if APR_FOPEN_XTHREAD flag is set

git-svn-id: http://svn.apache.org/repos/asf/apr/apr/trunk@1829962 13f79535-47bb-0310-9956-ffa450edef68
---
 file_io/win32/buffer.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'file_io')

diff --git a/file_io/win32/buffer.c b/file_io/win32/buffer.c
index 1b7d857ca..7f5d9d375 100644
--- a/file_io/win32/buffer.c
+++ b/file_io/win32/buffer.c
@@ -31,7 +31,9 @@ APR_DECLARE(apr_status_t) apr_file_buffer_set(apr_file_t *file,
         /* Flush the existing buffer */
         rv = apr_file_flush(file);
         if (rv != APR_SUCCESS) {
-            apr_thread_mutex_unlock(file->mutex);
+            if (file->flags & APR_FOPEN_XTHREAD) {
+                apr_thread_mutex_unlock(file->mutex);
+            }
             return rv;
         }
     }
-- 
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