linux-kernel - Re: [PATCH] net: via-rhine: net: Fix a resource leak in rhine

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Date:   Fri, 03 May 2019 23:13:08 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     baijiaju1990@...il.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: via-rhine: net: Fix a resource leak in
 rhine_init()

From: Jia-Ju Bai <baijiaju1990@...il.com>
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 <baijiaju1990@...il.com>

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.