Issue #18408: Fix fileio_read() on _PyBytes_Resize() failure

vstinner · vstinner · commit 85c761d3d335 · 2013-07-16T21:36:02.000+02:00
bytes is NULL on _PyBytes_Resize() failure
diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
@@ -739,7 +739,7 @@ fileio_read(fileio *self, PyObject *args)
 
     if (n != size) {
         if (_PyBytes_Resize(&bytes, n) < 0) {
-            Py_DECREF(bytes);
+            Py_CLEAR(bytes);
             return NULL;
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -739,7 +739,7 @@ fileio_read(fileio self, PyObject args)`
`739`	`739`
`740`	`740`	`if (n != size) {`
`741`	`741`	`if (_PyBytes_Resize(&bytes, n) < 0) {`
`742`		`- Py_DECREF(bytes);`
	`742`	`+ Py_CLEAR(bytes);`
`743`	`743`	`return NULL;`
`744`	`744`	`}`
`745`	`745`	`}`