From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Tomas Winkler <tomas.winkler@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alexander Usyskin <alexander.usyskin@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: [char-misc-next] mei: simplify error handling via devres function.
Date: Sat, 21 Jan 2017 00:00:07 +0200 [thread overview]
Message-ID: <CAHp75VdgC=iHtxZ5yRo+8xj8kbvkvqXwiyRQkM81Gp+r5t4BDg@mail.gmail.com> (raw)
In-Reply-To: <1484932972-3442-1-git-send-email-tomas.winkler@intel.com>
On Fri, Jan 20, 2017 at 7:22 PM, Tomas Winkler <tomas.winkler@intel.com> wrote:
> Use devm_ and pcim_ functions to make error handling
> simpler and code smaller and tidier.
>
> Based on original patch by
> mei: me: use managed functions pcim_* and devm_*
> Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> https://lkml.org/lkml/2016/2/1/339
Perhaps you may leave SoB.
But let me review the code.
> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
> - * Return: The mei_device_device pointer on success, NULL on failure.
> + * Return: The mei_device pointer on success, NULL on failure.
This is not related.
> -struct mei_device *mei_me_dev_init(struct pci_dev *pdev,
> - const struct mei_cfg *cfg)
> +struct mei_device *devm_mei_me_init(struct pci_dev *pdev,
> + const struct mei_cfg *cfg)
It's not exactly in devm_ namespace. (They have no corresponding
devm_*_fini, etc.)
Better to leave same name in spite of calling devm_* inside.
> -struct mei_device *mei_txe_dev_init(struct pci_dev *pdev)
> +struct mei_device *devm_mei_txe_init(struct pci_dev *pdev)
Ditto.
> end:
> + pci_set_drvdata(pdev, NULL);
Not needed.
> static void mei_me_remove(struct pci_dev *pdev)
> {
> struct mei_device *dev;
> - struct mei_me_hw *hw;
>
> dev = pci_get_drvdata(pdev);
> if (!dev)
> @@ -276,33 +260,19 @@ static void mei_me_remove(struct pci_dev *pdev)
> if (mei_pg_is_enabled(dev))
> pm_runtime_get_noresume(&pdev->dev);
> + pci_set_drvdata(pdev, NULL);
Ditto.
> - free_irq(pdev->irq, dev);
> + devm_free_irq(&pdev->dev, pdev->irq, dev);
> pci_disable_msi(pdev);
All three not needed
> return 0;
> @@ -75,22 +64,22 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> {
> struct mei_device *dev;
> struct mei_txe_hw *hw;
> + const int mask = BIT(SEC_BAR) | BIT(BRIDGE_BAR);
First line?
> + memcpy(hw->mem_addr, pcim_iomap_table(pdev), sizeof(hw->mem_addr));
Why?
It is kept by PCI core, you don't need a copy.
> end:
> + pci_set_drvdata(pdev, NULL);
Redundant.
> static void mei_txe_remove(struct pci_dev *pdev)
> {
> + pci_set_drvdata(pdev, NULL);
Ditto.
> @@ -256,7 +210,7 @@ static int mei_txe_pci_suspend(struct device *device)
> - free_irq(pdev->irq, dev);
> + devm_free_irq(&pdev->dev, pdev->irq, dev);
> pci_disable_msi(pdev);
All are redundant.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2017-01-20 22:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-20 17:22 [char-misc-next] mei: simplify error handling via devres function Tomas Winkler
2017-01-20 16:33 ` Andy Shevchenko
2017-01-20 22:00 ` Andy Shevchenko [this message]
2017-01-21 10:12 ` Winkler, Tomas
2017-01-23 14:48 ` Andy Shevchenko
2017-01-23 22:33 ` Winkler, Tomas
2017-01-23 22:40 ` Andy Shevchenko
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