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Date:   Sat, 4 May 2019 11:23:06 +0800
From:   Jia-Ju Bai <>
To:     David Miller <>
Subject: Re: [PATCH] net: via-rhine: net: Fix a resource leak in rhine_init()

On 2019/5/4 11:13, David Miller wrote:
> From: Jia-Ju Bai <>
> Date: Sat,  4 May 2019 11:08:13 +0800
>> When platform_driver_register() fails, pci_unregister_driver() is not
>> called to release the resource allocated by pci_register_driver().
>> To fix this bug, error handling code for platform_driver_register() and
>> pci_register_driver() is separately implemented.
>> This bug is found by a runtime fuzzing tool named FIZZER written by us.
>> Signed-off-by: Jia-Ju Bai <>
> I think the idea here is that PCI is not enabled in the kernel, it is
> fine for the pci register to fail and only the platform register to
> succeed.
> You are breaking that.

Okay, I can understand it.
If so, I think that platform_driver_register() should be called before 
pci_register_driver(), and it is still necessary to separately handle 
their errors.
If you agree, I will send a v2 patch.

Best wishes,
Jia-Ju Bai

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