Merged revisions 81275 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r81275 | antoine.pitrou | 2010-05-17 21:56:59 +0200 (lun., 17 mai 2010) | 4 lines

  Issue #7079: Fix a possible crash when closing a file object while using
  it from another thread.  Patch by Daniel Stutzbach.
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diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index b9d9097..df5a102 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -568,8 +568,10 @@
 file_close(PyFileObject *f)
 {
     PyObject *sts = close_the_file(f);
-    PyMem_Free(f->f_setbuf);
-    f->f_setbuf = NULL;
+    if (sts) {
+        PyMem_Free(f->f_setbuf);
+        f->f_setbuf = NULL;
+    }
     return sts;
 }