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SubjectRe: [PATCH] drivers/edac/amd8131_edac.c: add missing pci_dev_put
On Fri, Mar 16, 2012 at 11:27:06AM +0100, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@lip6.fr>
>
> Add a call to pci_dev_put in each error case. This is motivated by the
> associated remove function, which always calls pci_dev_put.
>
> Shift the error-handling code to the end of the function.
>
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

Let's see whether someone at Wind River actually still maintains that,
added to CC.

>
> ---
> drivers/edac/amd8131_edac.c | 20 ++++++++++++++------
> 1 file changed, 14 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/edac/amd8131_edac.c b/drivers/edac/amd8131_edac.c
> index a5c6805..dcfd53b 100644
> --- a/drivers/edac/amd8131_edac.c
> +++ b/drivers/edac/amd8131_edac.c
> @@ -249,6 +249,7 @@ static struct amd8131_info amd8131_chipset = {
> static int amd8131_probe(struct pci_dev *dev, const struct pci_device_id *id)
> {
> struct amd8131_dev_info *dev_info;
> + int ret;
>
> for (dev_info = amd8131_chipset.devices; dev_info->inst != NO_BRIDGE;
> dev_info++)
> @@ -265,12 +266,12 @@ static int amd8131_probe(struct pci_dev *dev, const struct pci_device_id *id)
> dev_info->dev = pci_dev_get(dev);
>
> if (pci_enable_device(dev_info->dev)) {
> - pci_dev_put(dev_info->dev);
> printk(KERN_ERR "failed to enable:"
> "vendor %x, device %x, devfn %x, name %s\n",
> PCI_VENDOR_ID_AMD, amd8131_chipset.err_dev,
> dev_info->devfn, dev_info->ctl_name);
> - return -ENODEV;
> + ret = -ENODEV;
> + goto error;
> }
>
> /*
> @@ -280,8 +281,10 @@ static int amd8131_probe(struct pci_dev *dev, const struct pci_device_id *id)
> */
> dev_info->edac_idx = edac_pci_alloc_index();
> dev_info->edac_dev = edac_pci_alloc_ctl_info(0, dev_info->ctl_name);
> - if (!dev_info->edac_dev)
> - return -ENOMEM;
> + if (!dev_info->edac_dev) {
> + ret = -ENOMEM;
> + goto error;
> + }
>
> dev_info->edac_dev->pvt_info = dev_info;
> dev_info->edac_dev->dev = &dev_info->dev->dev;
> @@ -298,8 +301,8 @@ static int amd8131_probe(struct pci_dev *dev, const struct pci_device_id *id)
> if (edac_pci_add_device(dev_info->edac_dev, dev_info->edac_idx) > 0) {
> printk(KERN_ERR "failed edac_pci_add_device() for %s\n",
> dev_info->ctl_name);
> - edac_pci_free_ctl_info(dev_info->edac_dev);
> - return -ENODEV;
> + ret = -ENODEV;
> + goto error_info;
> }
>
> printk(KERN_INFO "added one device on AMD8131 "
> @@ -308,6 +311,11 @@ static int amd8131_probe(struct pci_dev *dev, const struct pci_device_id *id)
> dev_info->devfn, dev_info->ctl_name);
>
> return 0;
> +error_info:
> + edac_pci_free_ctl_info(dev_info->edac_dev);
> +error:
> + pci_dev_put(dev_info->dev);
> + return ret;
> }
>
> static void amd8131_remove(struct pci_dev *dev)
>
> --
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>

--
Regards/Gruss,
Boris.

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