only finish error if one occurred

205ad613 · Benjamin Peterson · c0beabc2 · 205ad613
Commit 205ad613 authored Jan 16, 2012 by Benjamin Peterson
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Python/ast.c Python/ast.c +2 -1

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--- a/Python/ast.c
+++ b/Python/ast.c
@@ -835,7 +835,8 @@ PyAST_FromNode(const node *n, PyCompilerFlags *flags, const char *filename,
        PyTuple_SET_ITEM(c.c_normalize_args, 1, NULL);
        Py_DECREF(c.c_normalize_args);
    }
-    ast_error_finish(filename);
+    if (!res)
+        ast_error_finish(filename);
    return res;
 }