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iothread: check iothread->ctx before aio_context_unref to avoid assertion
if iothread->ctx is set to NULL, aio_context_unref triggers the assertion: g_source_unref: assertion 'source != NULL' failed. The patch fixes it. Signed-off-by: Lin Ma <lma@suse.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 20160926052958.10716-1-lma@suse.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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@ -75,6 +75,9 @@ static void iothread_instance_finalize(Object *obj)
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iothread_stop(obj, NULL);
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qemu_cond_destroy(&iothread->init_done_cond);
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qemu_mutex_destroy(&iothread->init_done_lock);
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if (!iothread->ctx) {
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return;
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}
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aio_context_unref(iothread->ctx);
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}
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