commit c5bef75c77af414c2f6c5901b6838d3071313bc7
author Antoine Pitrou <solipsis@pitrou.net> Wed Aug 15 23:16:51 2012 +0200
committer Antoine Pitrou <solipsis@pitrou.net> Wed Aug 15 23:16:51 2012 +0200
tree ec54e539c09e4c9b6fc8963258fef4c6484e5573
parent 4ffe9a064022b973ab152d108b13c470af486a74

Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Patch by Serhiy Storchaka.

Python/bltinmodule.c

diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 3def080..a07b78c 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -313,7 +313,7 @@
             ok = PyObject_IsTrue(good);
             Py_DECREF(good);
         }
-        if (ok) {
+        if (ok > 0) {
             if (j < len)
                 PyList_SET_ITEM(result, j, item);
             else {
@@ -324,8 +324,11 @@
             }
             ++j;
         }
-        else
+        else {
             Py_DECREF(item);
+            if (ok < 0)
+                goto Fail_result_it;
+        }
     }
 
 
@@ -2784,12 +2787,15 @@
         }
         ok = PyObject_IsTrue(good);
         Py_DECREF(good);
-        if (ok) {
+        if (ok > 0) {
             if (PyTuple_SetItem(result, j++, item) < 0)
                 goto Fail_1;
         }
-        else
+        else {
             Py_DECREF(item);
+            if (ok < 0)
+                goto Fail_1;
+        }
     }
 
     if (_PyTuple_Resize(&result, j) < 0)
@@ -2851,7 +2857,7 @@
             ok = PyObject_IsTrue(good);
             Py_DECREF(good);
         }
-        if (ok) {
+        if (ok > 0) {
             Py_ssize_t reslen;
             if (!PyString_Check(item)) {
                 PyErr_SetString(PyExc_TypeError, "can't filter str to str:"
@@ -2917,6 +2923,8 @@
                     }
         }
         Py_DECREF(item);
+        if (ok < 0)
+            goto Fail_1;
     }
 
     if (j < outlen)
@@ -2977,7 +2985,7 @@
             ok = PyObject_IsTrue(good);
             Py_DECREF(good);
         }
-        if (ok) {
+        if (ok > 0) {
             Py_ssize_t reslen;
             if (!PyUnicode_Check(item)) {
                 PyErr_SetString(PyExc_TypeError,
@@ -3032,6 +3040,8 @@
                     }
         }
         Py_DECREF(item);
+        if (ok < 0)
+            goto Fail_1;
     }
 
     if (j < outlen)