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由 ethan.zhao 提交于
We can check for addr being zero earlier and thus avoid the mutex_unlock() cleanup path. [bhelgaas: drop warning printk] Signed-off-by: Nethan.zhao <ethan.zhao@oracle.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NYinghai Lu <yinghai@kernel.org>
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