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authorMarkus Armbruster <armbru@redhat.com>2015-10-15 16:15:37 +0200
committerMarkus Armbruster <armbru@redhat.com>2015-10-29 14:34:45 +0100
commit7f0278435df1fa845b3bd9556942f89296d4246b (patch)
treead364ba05fbd93e34fff0e52ac3ae35c351ea4bb /qobject/qstring.c
parent2d6421a90047a83f6722832405fe09571040ea5b (diff)
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qstring: Make conversion from QObject * accept null
qobject_to_qstring() crashes 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: <1444918537-18107-7-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'qobject/qstring.c')
-rw-r--r--qobject/qstring.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/qobject/qstring.c b/qobject/qstring.c
index 607b7a1..cb72dfb 100644
--- a/qobject/qstring.c
+++ b/qobject/qstring.c
@@ -117,9 +117,9 @@ void qstring_append_chr(QString *qstring, int c)
*/
QString *qobject_to_qstring(const QObject *obj)
{
- if (qobject_type(obj) != QTYPE_QSTRING)
+ if (!obj || qobject_type(obj) != QTYPE_QSTRING) {
return NULL;
-
+ }
return container_of(obj, QString, base);
}