qfloat qint: Make conversion from QObject * accept null
qobject_to_qfloat() and qobject_to_qint() crash on null, which is a
trap for the unwary. Return null instead, and simplify a few callers.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1444918537-18107-5-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/qobject/qint.c b/qobject/qint.c
index 86b9b04..999688e 100644
--- a/qobject/qint.c
+++ b/qobject/qint.c
@@ -50,9 +50,9 @@
*/
QInt *qobject_to_qint(const QObject *obj)
{
- if (qobject_type(obj) != QTYPE_QINT)
+ if (!obj || qobject_type(obj) != QTYPE_QINT) {
return NULL;
-
+ }
return container_of(obj, QInt, base);
}
