gh-102941: Fix "‘subobj’ may be used uninitialized in this function" warning in bytes_methods.c (#102942)

sobolevn · web-flow · commit 2cdc5189a6bc · 2023-03-26T17:05:06.000-07:00
diff --git a/Objects/bytes_methods.c b/Objects/bytes_methods.c
@@ -774,7 +774,7 @@ _Py_bytes_tailmatch(const char *str, Py_ssize_t len,
 {
     Py_ssize_t start = 0;
     Py_ssize_t end = PY_SSIZE_T_MAX;
-    PyObject *subobj;
+    PyObject *subobj = NULL;
     int result;
 
     if (!stringlib_parse_args_finds(function_name, args, &subobj, &start, &end))

Original file line number	Diff line number	Diff line change
`@@ -774,7 +774,7 @@ _Py_bytes_tailmatch(const char *str, Py_ssize_t len,`
`774`	`774`	`{`
`775`	`775`	`Py_ssize_t start = 0;`
`776`	`776`	`Py_ssize_t end = PY_SSIZE_T_MAX;`
`777`		`- PyObject *subobj;`
	`777`	`+ PyObject *subobj = NULL;`
`778`	`778`	`int result;`
`779`	`779`
`780`	`780`	`if (!stringlib_parse_args_finds(function_name, args, &subobj, &start, &end))`