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-rw-r--r--Objects/unicodeobject.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 6eaccbe..cbd2870 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -7383,27 +7383,35 @@ Error:
goto onError;
}
- if (_PyUnicodeWriter_Prepare(&writer, 1, value) == -1)
+ if (_PyUnicodeWriter_Prepare(&writer, 1, value) == -1) {
+ Py_DECREF(x);
goto onError;
+ }
PyUnicode_WRITE(writer.kind, writer.data, writer.pos, value);
writer.pos++;
}
else if (PyUnicode_Check(x)) {
- if (PyUnicode_READY(x) == -1)
+ if (PyUnicode_READY(x) == -1) {
+ Py_DECREF(x);
goto onError;
+ }
if (PyUnicode_GET_LENGTH(x) == 1) {
Py_UCS4 value = PyUnicode_READ_CHAR(x, 0);
if (value == 0xFFFE)
goto Undefined;
- if (_PyUnicodeWriter_Prepare(&writer, 1, value) == -1)
+ if (_PyUnicodeWriter_Prepare(&writer, 1, value) == -1) {
+ Py_DECREF(x);
goto onError;
+ }
PyUnicode_WRITE(writer.kind, writer.data, writer.pos, value);
writer.pos++;
}
else {
writer.overallocate = 1;
- if (_PyUnicodeWriter_WriteStr(&writer, x) == -1)
+ if (_PyUnicodeWriter_WriteStr(&writer, x) == -1) {
+ Py_DECREF(x);
goto onError;
+ }
}
}
else {