QemuOpts: check NULL input for qemu_opts_del

To simplify later using of qemu_opts_del, accept NULL input.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Leandro Dorileo <l@dorileo.org>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
master
Chunyan Liu 2014-06-05 17:20:50 +08:00 committed by Stefan Hajnoczi
parent a1097a2614
commit 4782183da3
1 changed files with 4 additions and 0 deletions

View File

@ -1011,6 +1011,10 @@ void qemu_opts_del(QemuOpts *opts)
{
QemuOpt *opt;
if (opts == NULL) {
return;
}
for (;;) {
opt = QTAILQ_FIRST(&opts->head);
if (opt == NULL)