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[3.11] gh-107913: Fix possible losses of OSError error codes (GH-107930) (GH-108524)

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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)
This commit is contained in:
Serhiy Storchaka 2023-08-27 15:18:58 +03:00 • committed by GitHub
parent 8a275f7c01
commit b9fc536399
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GPG key ID: 4AEE18F83AFDEB23
17 changed files with 129 additions and 77 deletions
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9
Modules/_multiprocessing/semaphore.c
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@ -516,12 +516,12 @@ _multiprocessing_SemLock_impl(PyTypeObject *type, int kind, int value,
return result;
failure:
if (handle != SEM_FAILED)
SEM_CLOSE(handle);
PyMem_Free(name_copy);
if (!PyErr_Occurred()) {
_PyMp_SetError(NULL, MP_STANDARD_ERROR);
}
if (handle != SEM_FAILED)
SEM_CLOSE(handle);
PyMem_Free(name_copy);
return NULL;
}
@ -556,8 +556,9 @@ _multiprocessing_SemLock__rebuild_impl(PyTypeObject *type, SEM_HANDLE handle,
if (name != NULL) {
handle = sem_open(name, 0);
if (handle == SEM_FAILED) {
PyErr_SetFromErrno(PyExc_OSError);
PyMem_Free(name_copy);
return PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
}
#endif