varlink_call_and_log() does not hand out a new reference for the reply object, so the caller should not unref it. The _cleanup_(sd_json_variant_unrefp) on reply was therefore wrong from the start. The original TAKE_PTR(reply) was working around this incorrect cleanup by preventing it from firing, but that left reply's refcount one too high after sd_json_variant_ref(v) incremented the parent's count. Fix by dropping _cleanup_(sd_json_variant_unrefp) from the reply variable declaration entirely, as suggested by Lennart Poettering. Signed-off-by: dongshengyuan <dongshengyuan@uniontech.com>
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