From: "Pali Rohár" <pali@kernel.org>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: "Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Rob Herring" <robh@kernel.org>,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
kernel@pengutronix.de
Subject: Re: [PATCH 01/15] PCI: aardvark: Convert to platform remove callback returning void
Date: Tue, 21 Mar 2023 20:36:04 +0100 [thread overview]
Message-ID: <20230321193604.7iopueamqtaqrlfi@pali> (raw)
In-Reply-To: <20230321193208.366561-2-u.kleine-koenig@pengutronix.de>
On Tuesday 21 March 2023 20:31:54 Uwe Kleine-König wrote:
> The .remove() callback for a platform driver returns an int which makes
> many driver authors wrongly assume it's possible to do error handling by
> returning an error code. However the value returned is (mostly) ignored
> and this typically results in resource leaks. To improve here there is a
> quest to make the remove callback return void. In the first step of this
> quest all drivers are converted to .remove_new() which already returns
> void.
>
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
There are more important fixes for this driver waiting on the list, so I
do not see reason for sending such unimportant change for this driver
which does not fix any issue. I would suggest to put this change at the
end of the pending queue of aardvark patches to prevent any rebasing of
the important fixes patches and possible merge conflicts.
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> ---
> drivers/pci/controller/pci-aardvark.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
> index 513d8edf3a5c..71ecd7ddcc8a 100644
> --- a/drivers/pci/controller/pci-aardvark.c
> +++ b/drivers/pci/controller/pci-aardvark.c
> @@ -1927,7 +1927,7 @@ static int advk_pcie_probe(struct platform_device *pdev)
> return 0;
> }
>
> -static int advk_pcie_remove(struct platform_device *pdev)
> +static void advk_pcie_remove(struct platform_device *pdev)
> {
> struct advk_pcie *pcie = platform_get_drvdata(pdev);
> struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie);
> @@ -1989,8 +1989,6 @@ static int advk_pcie_remove(struct platform_device *pdev)
>
> /* Disable phy */
> advk_pcie_disable_phy(pcie);
> -
> - return 0;
> }
>
> static const struct of_device_id advk_pcie_of_match_table[] = {
> @@ -2005,7 +2003,7 @@ static struct platform_driver advk_pcie_driver = {
> .of_match_table = advk_pcie_of_match_table,
> },
> .probe = advk_pcie_probe,
> - .remove = advk_pcie_remove,
> + .remove_new = advk_pcie_remove,
> };
> module_platform_driver(advk_pcie_driver);
>
> --
> 2.39.2
>
next prev parent reply other threads:[~2023-03-21 19:38 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-21 19:31 [PATCH 00/15] PCI: Convert to platform remove callback returning void Uwe Kleine-König
2023-03-21 19:31 ` [PATCH 01/15] PCI: aardvark: " Uwe Kleine-König
2023-03-21 19:36 ` Pali Rohár [this message]
2023-03-21 21:08 ` Uwe Kleine-König
2023-03-21 19:31 ` [PATCH 02/15] PCI: altera: " Uwe Kleine-König
2023-03-21 19:31 ` [PATCH 03/15] PCI: altera-msi: " Uwe Kleine-König
2023-03-21 19:31 ` [PATCH 04/15] PCI: brcmstb: " Uwe Kleine-König
2023-03-21 21:37 ` Florian Fainelli
2023-03-21 19:31 ` [PATCH 05/15] PCI: cadence/j721e: " Uwe Kleine-König
2023-03-21 19:31 ` [PATCH 06/15] PCI: dwc/*: " Uwe Kleine-König
2023-03-22 18:06 ` Serge Semin
2023-03-21 19:32 ` [PATCH 07/15] PCI: hisi-error: " Uwe Kleine-König
2023-03-21 19:32 ` [PATCH 08/15] PCI: iproc: " Uwe Kleine-König
2023-03-21 21:37 ` Florian Fainelli
2023-03-21 19:32 ` [PATCH 09/15] PCI: mediatek: " Uwe Kleine-König
2023-03-21 19:32 ` [PATCH 10/15] PCI: mediatek-gen3: " Uwe Kleine-König
2023-03-21 19:32 ` [PATCH 11/15] PCI: mt7621: " Uwe Kleine-König
2023-03-22 6:40 ` Sergio Paracuellos
2023-03-21 19:32 ` [PATCH 12/15] PCI: mvebu: " Uwe Kleine-König
2023-03-21 19:32 ` [PATCH 13/15] PCI: rockchip-host: " Uwe Kleine-König
2023-03-21 19:32 ` [PATCH 14/15] PCI: tegra: " Uwe Kleine-König
2023-03-21 19:32 ` [PATCH 15/15] PCI: xgene-msi: " Uwe Kleine-König
2023-05-30 14:07 ` [PATCH 00/15] PCI: " Uwe Kleine-König
2023-06-02 21:37 ` Bjorn Helgaas
2023-06-06 16:02 ` Uwe Kleine-König
2023-06-24 14:23 ` Krzysztof Wilczyński
2023-06-11 13:24 ` Pali Rohár
2023-06-12 16:19 ` Bjorn Helgaas
2023-06-12 18:17 ` Pali Rohár
2023-06-24 14:19 ` Krzysztof Wilczyński
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