linux-kernel - Re: [PATCH] edac: i7300_edac: call pci_disable

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Message-ID: <217418.77835.qm@web50101.mail.re2.yahoo.com>
Date:	Mon, 27 Sep 2010 11:00:27 -0700 (PDT)
From:	Doug Thompson <norsk5@...oo.com>
To:	kernel-janitors@...r.kernel.org,
	Vasiliy Kulikov <segooon@...il.com>
Cc:	Mauro Carvalho Chehab <mchehab@...hat.com>,
	linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] edac: i7300_edac: call pci_disable_device

Can you submit your Signed-of-by:  line to properly sign off on this submission?

And a bit more description would be appreciated.

thanks

doug thompson

--- On Sun, 9/26/10, Vasiliy Kulikov <segooon@...il.com> wrote:

> From: Vasiliy Kulikov <segooon@...il.com>
> Subject: [PATCH] edac: i7300_edac: call pci_disable_device
> To: kernel-janitors@...r.kernel.org
> Cc: "Mauro Carvalho Chehab" <mchehab@...hat.com>, linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org
> Date: Sunday, September 26, 2010, 2:59 AM
> Neither i7300_init_one() nor
> i7300_remove_one() calls pci_disable_device()
> after enabling it.
> ---
>  Compile tested.
> 
>  drivers/edac/i7300_edac.c |   35
> +++++++++++++++++++++--------------
>  1 files changed, 21 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/edac/i7300_edac.c
> b/drivers/edac/i7300_edac.c
> index 38920c0..749fa75 100644
> --- a/drivers/edac/i7300_edac.c
> +++ b/drivers/edac/i7300_edac.c
> @@ -1046,7 +1046,7 @@ static int __devinit
> i7300_init_one(struct pci_dev *pdev,
>  
>      /* wake up device */
>      rc = pci_enable_device(pdev);
> -    if (rc == -EIO)
> +    if (rc)
>          return rc;
>  
>      debugf0("MC: " __FILE__ ": %s(), pdev
> bus %u dev=0x%x fn=0x%x\n",
> @@ -1055,8 +1055,9 @@ static int __devinit
> i7300_init_one(struct pci_dev *pdev,
>         
> PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
>  
>      /* We only are looking for func 0 of
> the set */
> +    rc = -ENODEV;
>      if (PCI_FUNC(pdev->devfn) != 0)
> -        return -ENODEV;
> +        goto fail_disable;
>  
>      /* As we don't have a motherboard
> identification routine to determine
>       * actual number of
> slots/dimms per channel, we thus utilize the
> @@ -1073,10 +1074,10 @@ static int __devinit
> i7300_init_one(struct pci_dev *pdev,
>          __func__,
> num_channels, num_dimms_per_channel, num_csrows);
>  
>      /* allocate a new MC control structure
> */
> +    rc = -ENOMEM;
>      mci = edac_mc_alloc(sizeof(*pvt),
> num_csrows, num_channels, 0);
> -
>      if (mci == NULL)
> -        return -ENOMEM;
> +        goto fail_disable;
>  
>      debugf0("MC: " __FILE__ ": %s(): mci =
> %p\n", __func__, mci);
>  
> @@ -1085,15 +1086,15 @@ static int __devinit
> i7300_init_one(struct pci_dev *pdev,
>      pvt = mci->pvt_info;
>      pvt->pci_dev_16_0_fsb_ctlr =
> pdev;    /* Record this device in our private
> */
>  
> +    rc = -ENOMEM;
>      pvt->tmp_prt_buffer =
> kmalloc(PAGE_SIZE, GFP_KERNEL);
> -    if (!pvt->tmp_prt_buffer) {
> -        edac_mc_free(mci);
> -        return -ENOMEM;
> -    }
> +    if (!pvt->tmp_prt_buffer)
> +        goto fail_free;
>  
>      /* 'get' the pci devices we want to
> reserve for our use */
> +    rc = -ENODEV;
>      if (i7300_get_devices(mci))
> -        goto fail0;
> +        goto
> fail_buffer_free;
>  
>      mci->mc_idx = 0;
>      mci->mtype_cap = MEM_FLAG_FB_DDR2;
> @@ -1121,13 +1122,14 @@ static int __devinit
> i7300_init_one(struct pci_dev *pdev,
>      }
>  
>      /* add this new MC control structure to
> EDAC's list of MCs */
> +    rc = -ENODEV;
>      if (edac_mc_add_mc(mci)) {
>          debugf0("MC: "
> __FILE__
>             
> ": %s(): failed edac_mc_add_mc()\n", __func__);
>          /* FIXME: perhaps
> some code should go here that disables error
>           *
> reporting if we just enabled it
>           */
> -        goto fail1;
> +        goto fail_put;
>      }
>  
>      i7300_clear_error(mci);
> @@ -1146,14 +1148,18 @@ static int __devinit
> i7300_init_one(struct pci_dev *pdev,
>      return 0;
>  
>      /* Error exit unwinding stack */
> -fail1:
> -
> +fail_put:
>      i7300_put_devices(mci);
>  
> -fail0:
> +fail_buffer_free:
>      kfree(pvt->tmp_prt_buffer);
> +
> +fail_free:
>      edac_mc_free(mci);
> -    return -ENODEV;
> +
> +fail_disable:
> +    pci_disable_device(pdev);
> +    return rc;
>  }
>  
>  /**
> @@ -1181,6 +1187,7 @@ static void __devexit
> i7300_remove_one(struct pci_dev *pdev)
>  
>      kfree(tmp);
>      edac_mc_free(mci);
> +    pci_disable_device(pdev);
>  }
>  
>  /*
> -- 
> 1.7.0.4
> 
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