linux-kernel - Re: [PATCH] ethernet: tulip: fix missing pci_disable_device() on error in tulip_init

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Date:   Wed, 11 May 2022 23:55:04 +0200
From:   Rolf Eike Beer <eike-kernel@...tec.de>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-parisc@...r.kernel.org,
        netdev@...r.kernel.org, Yang Yingliang <yangyingliang@...wei.com>,
        davem@...emloft.net, edumazet@...gle.com
Subject: Re: [PATCH] ethernet: tulip: fix missing pci_disable_device() on error in tulip_init_one()

Am Freitag, 6. Mai 2022, 18:21:52 CEST schrieb Jakub Kicinski:
> On Fri, 06 May 2022 12:11:56 +0200 Rolf Eike Beer wrote:
> > Am Freitag, 6. Mai 2022, 11:42:50 CEST schrieb Yang Yingliang:
> > > Fix the missing pci_disable_device() before return
> > > from tulip_init_one() in the error handling case.
> > 
> > I would suggest removing the pci_disable_device() from tulip_remove_one()
> > instead and using pcim_enable_device(), i.e. devres, and let the driver
> > core handle all these things. Of course more of the used functions could
> > be converted them, e.g. using devm_alloc_etherdev() and so on.
> 
> Let's not rewrite the error handling in this dinosaur of a driver
> any more than absolutely necessary, please.

Challenge accepted ;)

[  274.452394] tulip0: no phy info, aborting mtable build
[  274.499041] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
[  274.750691] net eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xf4008000, 00:30:6e:08:7d:21, IRQ 17
[  283.104520] net eth0: Setting full-duplex based on MII#1 link partner capability of c1e1

Works fine, patch in a minute.
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