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[3.12] gh-107913: Fix possible losses of OSError error codes (GH-107930) (#108523)

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gh-107913: Fix possible losses of OSError error codes (GH-107930)

Functions like PyErr_SetFromErrno() and SetFromWindowsErr() should be
called immediately after using the C API which sets errno or the Windows
error code.
(cherry picked from commit 2b15536fa9)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This commit is contained in:
Miss Islington (bot) 2023-08-26 16:24:40 -07:00 • committed by GitHub
parent bbdd8895a5
commit 3e20303717
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GPG key ID: 4AEE18F83AFDEB23
17 changed files with 129 additions and 75 deletions
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3
Modules/getpath.c
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@ -341,11 +341,12 @@ getpath_readlines(PyObject *Py_UNUSED(self), PyObject *args)
return NULL;
}
FILE *fp = _Py_wfopen(path, L"rb");
PyMem_Free((void *)path);
if (!fp) {
PyErr_SetFromErrno(PyExc_OSError);
PyMem_Free((void *)path);
return NULL;
}
PyMem_Free((void *)path);
r = PyList_New(0);
if (!r) {