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python: add proper error handling to loaded_modules()

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We need to check the result of basically all Py* calls and cleanup
properly if they fail.
This commit is contained in:
Andy Grover 2012-03-18 21:49:07 -07:00 committed by Lucas De Marchi
parent 31aa6834ba
commit 705187f17b
1 changed files with 18 additions and 1 deletions
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19
libkmod/python/libkmod.c
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@ -97,15 +97,32 @@ kmod_obj_loaded_modules(PyObject *self, PyObject *unused_args)
} }
PyObject *pylist = PyList_New(0); PyObject *pylist = PyList_New(0);
if (!pylist) {
kmod_module_unref_list(list);
return PyErr_NoMemory();
}
/* refcountapallooza. */
kmod_list_foreach(itr, list) { kmod_list_foreach(itr, list) {
struct kmod_module *mod = kmod_module_get_module(itr); struct kmod_module *mod = kmod_module_get_module(itr);
const char *name = kmod_module_get_name(mod); const char *name = kmod_module_get_name(mod);
long size = kmod_module_get_size(mod); long size = kmod_module_get_size(mod);
PyObject *entry = Py_BuildValue("(sl)", name, size); PyObject *entry = Py_BuildValue("(sl)", name, size);
if (!entry) {
Py_DECREF(pylist);
kmod_module_unref(mod);
kmod_module_unref_list(list);
return NULL;
}
PyList_Append(pylist, entry); if (PyList_Append(pylist, entry) == -1) {
Py_DECREF(entry);
Py_DECREF(pylist);
kmod_module_unref(mod);
kmod_module_unref_list(list);
return NULL;
}
Py_DECREF(entry); Py_DECREF(entry);
kmod_module_unref(mod); kmod_module_unref(mod);