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qom: Fix regression with 'qom-type' 

Commit 9a6d1ac assumed that 'qom-type' could be removed from QemuOpts
with no ill effects.  However, this command line proves otherwise:

$ ./x86_64-softmmu/qemu-system-x86_64 -nodefaults -nographic -qmp stdio \
  -object rng-random,filename=/dev/urandom,id=rng0 \
  -device virtio-rng-pci,rng=rng0
qemu-system-x86_64: -object rng-random,filename=/dev/urandom,id=rng0: Parameter 'qom-type' is missing

Fix the regression by restoring qom-type in opts after its temporary
removal that was needed for the duration of user_creatable_add_opts().

Reported-by: Richard W. M. Jones <rjones@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Message-id: 20170323160315.19696-1-eblake@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Eric Blake 2017-03-23 11:03:15 -05:00 committed by Peter Maydell
parent c50126aac1
commit 0832970119
1 changed files with 2 additions and 0 deletions
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2
qom/object_interfaces.c
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@ -122,6 +122,7 @@ Object *user_creatable_add_opts(QemuOpts *opts, Error **errp)
}
if (!id) {
error_setg(errp, QERR_MISSING_PARAMETER, "id");
qemu_opt_set(opts, "qom-type", type, &error_abort);
g_free(type);
return NULL;
}
@ -134,6 +135,7 @@ Object *user_creatable_add_opts(QemuOpts *opts, Error **errp)
visit_free(v);
qemu_opts_set_id(opts, (char *) id);
qemu_opt_set(opts, "qom-type", type, &error_abort);
g_free(type);
QDECREF(pdict);
return obj;