linux-kernel - Re: [PATCH] mtd: rawnand: denali: add missed pci_release

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Message-ID: <CAK7LNAQsK5JD-qeBugp9mn8DgW+SYttp5AwZ_ht5KY2MhPe-Ew@mail.gmail.com>
Date:   Fri, 6 Dec 2019 19:32:03 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Chuhong Yuan <hslester96@...il.com>
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd <linux-mtd@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mtd: rawnand: denali: add missed pci_release_regions

Hi.

On Fri, Dec 6, 2019 at 4:54 PM Chuhong Yuan <hslester96@...il.com> wrote:
>
> The driver forgets to call pci_release_regions() in probe failure
> and remove.
> Add the missed calls to fix it.
>
> Signed-off-by: Chuhong Yuan <hslester96@...il.com>
> ---

This patch looks equivalent to what I submitted,
then was rejected a couple of years ago.
https://lists.gt.net/linux/kernel/2557740



>  drivers/mtd/nand/raw/denali_pci.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/raw/denali_pci.c b/drivers/mtd/nand/raw/denali_pci.c
> index d62aa5271753..ca170775b141 100644
> --- a/drivers/mtd/nand/raw/denali_pci.c
> +++ b/drivers/mtd/nand/raw/denali_pci.c
> @@ -77,7 +77,8 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
>         denali->reg = ioremap_nocache(csr_base, csr_len);
>         if (!denali->reg) {
>                 dev_err(&dev->dev, "Spectra: Unable to remap memory region\n");
> -               return -ENOMEM;
> +               ret = -ENOMEM;
> +               goto out_release_regions;
>         }
>
>         denali->host = ioremap_nocache(mem_base, mem_len);
> @@ -121,6 +122,8 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
>         iounmap(denali->host);
>  out_unmap_reg:
>         iounmap(denali->reg);
> +out_release_regions:
> +       pci_release_regions(dev);
>         return ret;
>  }
>
> @@ -131,6 +134,7 @@ static void denali_pci_remove(struct pci_dev *dev)
>         denali_remove(denali);
>         iounmap(denali->reg);
>         iounmap(denali->host);
> +       pci_release_regions(dev);
>  }
>
>  static struct pci_driver denali_pci_driver = {
> --
> 2.24.0
>


-- 
Best Regards
Masahiro Yamada