linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: Bjorn Helgaas <bhelgaas@google.com>
To: Wei Yang <weiyang@linux.vnet.ibm.com>
Cc: linux-pci@vger.kernel.org, benh@au1.ibm.com,
	linuxppc-dev@lists.ozlabs.org, gwshan@linux.vnet.ibm.com
Subject: Re: [PATCH] pci/iov: fix memory leak introduced in "PCI: Store individual VF BAR size in struct pci_sriov"
Date: Wed, 4 Feb 2015 10:28:26 -0600	[thread overview]
Message-ID: <20150204162826.GA7643@google.com> (raw)
In-Reply-To: <1423066130-8587-1-git-send-email-weiyang@linux.vnet.ibm.com>

On Thu, Feb 05, 2015 at 12:08:50AM +0800, Wei Yang wrote:
> Bjorn, this is an error introduced in the patch "PCI: Store individual VF BAR
> size in struct pci_sriov".
> 
> This patch is based on the pci/virtualization branch. I have tried, it could
> merge with the bad one cleanly.
> 
> Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>

Great, thanks.  I folded this into "PCI: Store individual VF BAR size in
struct pci_sriov".

> ---
>  drivers/pci/iov.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
> index d64b9df..721987b 100644
> --- a/drivers/pci/iov.c
> +++ b/drivers/pci/iov.c
> @@ -430,10 +430,8 @@ found:
>  	pci_write_config_dword(dev, pos + PCI_SRIOV_SYS_PGSIZE, pgsz);
>  
>  	iov = kzalloc(sizeof(*iov), GFP_KERNEL);
> -	if (!iov) {
> -		rc = -ENOMEM;
> -		goto failed;
> -	}
> +	if (!iov)
> +		return -ENOMEM;
>  
>  	nres = 0;
>  	for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) {
> @@ -485,6 +483,8 @@ failed:
>  		res->flags = 0;
>  	}
>  
> +	kfree(iov);
> +
>  	return rc;
>  }
>  
> -- 
> 1.8.3.1
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-pci" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

  reply	other threads:[~2015-02-04 16:28 UTC|newest]

Thread overview: 85+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-22  5:54 [PATCH V10 00/17] Enable SRIOV on Power8 Wei Yang
2014-12-22  5:54 ` [PATCH V10 01/17] PCI/IOV: Export interface for retrieve VF's BDF Wei Yang
2014-12-22  5:54 ` [PATCH V10 02/17] PCI/IOV: add VF enable/disable hook Wei Yang
2014-12-22  5:54 ` [PATCH V10 03/17] PCI: Add weak pcibios_iov_resource_alignment() interface Wei Yang
2014-12-22  5:54 ` [PATCH V10 04/17] PCI: Store VF BAR size in pci_sriov Wei Yang
2014-12-22  5:54 ` [PATCH V10 05/17] PCI: Take additional PF's IOV BAR alignment in sizing and assigning Wei Yang
2014-12-22  5:54 ` [PATCH V10 06/17] powerpc/pci: Add PCI resource alignment documentation Wei Yang
2014-12-22  5:54 ` [PATCH V10 07/17] powerpc/pci: Don't unset pci resources for VFs Wei Yang
2014-12-22  5:54 ` [PATCH V10 08/17] powrepc/pci: Refactor pci_dn Wei Yang
2014-12-22  5:54 ` [PATCH V10 09/17] powerpc/pci: remove pci_dn->pcidev field Wei Yang
2014-12-22  5:54 ` [PATCH V10 10/17] powerpc/powernv: Use pci_dn in PCI config accessor Wei Yang
2014-12-22  5:54 ` [PATCH V10 11/17] powerpc/powernv: Allocate pe->iommu_table dynamically Wei Yang
2014-12-22  5:54 ` [PATCH V10 12/17] powerpc/powernv: Reserve additional space for IOV BAR according to the number of total_pe Wei Yang
2014-12-22  5:54 ` [PATCH V10 13/17] powerpc/powernv: Implement pcibios_iov_resource_alignment() on powernv Wei Yang
2014-12-22  5:54 ` [PATCH V10 14/17] powerpc/powernv: Shift VF resource with an offset Wei Yang
2014-12-22  5:54 ` [PATCH V10 15/17] powerpc/powernv: Allocate VF PE Wei Yang
2014-12-22  5:54 ` [PATCH V10 16/17] powerpc/powernv: Reserve additional space for IOV BAR, with m64_per_iov supported Wei Yang
2014-12-22  5:54 ` [PATCH V10 17/17] powerpc/powernv: Group VF PE when IOV BAR is big on PHB3 Wei Yang
2014-12-22  6:05 ` [PATCH V10 00/17] Enable SRIOV on Power8 Wei Yang
2015-01-13 18:05   ` Bjorn Helgaas
2015-01-15  2:27     ` [PATCH V11 " Wei Yang
2015-01-15  2:27       ` [PATCH V11 01/17] PCI/IOV: Export interface for retrieve VF's BDF Wei Yang
2015-02-20 23:09         ` Bjorn Helgaas
2015-03-02  6:05           ` Wei Yang
2015-01-15  2:27       ` [PATCH V11 02/17] PCI/IOV: add VF enable/disable hook Wei Yang
2015-02-10  0:26         ` Benjamin Herrenschmidt
2015-02-10  1:35           ` Wei Yang
2015-02-10  2:13             ` Benjamin Herrenschmidt
2015-02-10  6:18               ` Wei Yang
2015-01-15  2:27       ` [PATCH V11 03/17] PCI: Add weak pcibios_iov_resource_alignment() interface Wei Yang
2015-02-10  0:32         ` Benjamin Herrenschmidt
2015-02-10  1:44           ` Wei Yang
2015-01-15  2:27       ` [PATCH V11 04/17] PCI: Store VF BAR size in pci_sriov Wei Yang
2015-01-15  2:27       ` [PATCH V11 05/17] PCI: Take additional PF's IOV BAR alignment in sizing and assigning Wei Yang
2015-01-15  2:27       ` [PATCH V11 06/17] powerpc/pci: Add PCI resource alignment documentation Wei Yang
2015-02-04 23:44         ` Bjorn Helgaas
2015-02-10  1:02           ` Benjamin Herrenschmidt
2015-02-20  0:56             ` Bjorn Helgaas
2015-02-20  2:41               ` Benjamin Herrenschmidt
2015-01-15  2:27       ` [PATCH V11 07/17] powerpc/pci: Don't unset pci resources for VFs Wei Yang
2015-02-10  0:36         ` Benjamin Herrenschmidt
2015-02-10  1:51           ` Wei Yang
2015-02-10  2:14             ` Benjamin Herrenschmidt
2015-02-10  6:25               ` Wei Yang
2015-02-10  8:14                 ` Benjamin Herrenschmidt
2015-02-20 23:47                   ` Bjorn Helgaas
2015-03-02  6:09                     ` Wei Yang
2015-01-15  2:27       ` [PATCH V11 08/17] powrepc/pci: Refactor pci_dn Wei Yang
2015-02-20 23:19         ` Bjorn Helgaas
2015-02-23  0:13           ` Gavin Shan
2015-02-24  8:13             ` Bjorn Helgaas
2015-02-24  8:25               ` Benjamin Herrenschmidt
2015-01-15  2:27       ` [PATCH V11 09/17] powerpc/pci: remove pci_dn->pcidev field Wei Yang
2015-01-15  2:28       ` [PATCH V11 10/17] powerpc/powernv: Use pci_dn in PCI config accessor Wei Yang
2015-01-15  2:28       ` [PATCH V11 11/17] powerpc/powernv: Allocate pe->iommu_table dynamically Wei Yang
2015-01-15  2:28       ` [PATCH V11 12/17] powerpc/powernv: Reserve additional space for IOV BAR according to the number of total_pe Wei Yang
2015-02-04 21:26         ` Bjorn Helgaas
2015-02-04 23:08           ` Wei Yang
2015-01-15  2:28       ` [PATCH V11 13/17] powerpc/powernv: Implement pcibios_iov_resource_alignment() on powernv Wei Yang
2015-02-04 21:26         ` Bjorn Helgaas
2015-02-04 22:45           ` Wei Yang
2015-01-15  2:28       ` [PATCH V11 14/17] powerpc/powernv: Shift VF resource with an offset Wei Yang
2015-01-30 23:08         ` Bjorn Helgaas
2015-02-03  1:30           ` Wei Yang
2015-02-03  7:01           ` [PATCH] powerpc/powernv: make sure the IOV BAR will not exceed limit after shifting Wei Yang
2015-02-04  0:19             ` Bjorn Helgaas
2015-02-04  3:34               ` Wei Yang
2015-02-04 14:19                 ` Bjorn Helgaas
2015-02-04 15:20                   ` Wei Yang
2015-02-04 16:08                   ` [PATCH] pci/iov: fix memory leak introduced in "PCI: Store individual VF BAR size in struct pci_sriov" Wei Yang
2015-02-04 16:28                     ` Bjorn Helgaas [this message]
2015-02-04 20:53                 ` [PATCH] powerpc/powernv: make sure the IOV BAR will not exceed limit after shifting Bjorn Helgaas
2015-02-05  3:01                   ` Wei Yang
2015-01-15  2:28       ` [PATCH V11 15/17] powerpc/powernv: Allocate VF PE Wei Yang
2015-01-15  2:28       ` [PATCH V11 16/17] powerpc/powernv: Reserve additional space for IOV BAR, with m64_per_iov supported Wei Yang
2015-02-04 22:05         ` Bjorn Helgaas
2015-02-05  0:07           ` Wei Yang
2015-01-15  2:28       ` [PATCH V11 17/17] powerpc/powernv: Group VF PE when IOV BAR is big on PHB3 Wei Yang
2015-02-04 23:44       ` [PATCH V11 00/17] Enable SRIOV on Power8 Bjorn Helgaas
2015-02-05  0:13         ` Wei Yang
2015-02-05  6:34         ` [PATCH 0/3] Code adjustment on pci/virtualization Wei Yang
2015-02-05  6:34           ` [PATCH 1/3] fix on Store individual VF BAR size in struct pci_sriov Wei Yang
2015-02-05  6:34           ` [PATCH 2/3] fix Reserve additional space for IOV BAR, with m64_per_iov supported Wei Yang
2015-02-05  6:34           ` [PATCH 3/3] remove the unused end in pnv_pci_vf_resource_shift() Wei Yang
2015-02-10  0:25         ` [PATCH V11 00/17] Enable SRIOV on Power8 Benjamin Herrenschmidt

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20150204162826.GA7643@google.com \
    --to=bhelgaas@google.com \
    --cc=benh@au1.ibm.com \
    --cc=gwshan@linux.vnet.ibm.com \
    --cc=linux-pci@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=weiyang@linux.vnet.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).