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由 Alexey Khoroshilov 提交于
If driver_register() failed there is no sense to call driver_unregister(). unregister_chrdev() should be called here. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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