linux-kernel - Re: [RESEND] NTB: hw: amd: fix an issue about leak system resources

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Message-ID: <20200824145246.GB27238@kudzu.us>
Date:   Mon, 24 Aug 2020 10:52:47 -0400
From:   Jon Mason <jdmason@...zu.us>
To:     Kaige Li <likaige@...ngson.cn>
Cc:     Sanjay R Mehta <sanju.mehta@....com>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>,
        Dave Jiang <dave.jiang@...el.com>,
        Allen Hubbe <allenbh@...il.com>, linux-ntb@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: Re: [RESEND] NTB: hw: amd: fix an issue about leak system resources

On Tue, Aug 11, 2020 at 09:59:57AM +0800, Kaige Li wrote:
> The related system resources were not released when pci_set_dma_mask(),
> pci_set_consistent_dma_mask(), or pci_iomap() return error in the
> amd_ntb_init_pci() function. Add pci_release_regions() to fix it.
> 
> Signed-off-by: Kaige Li <likaige@...ngson.cn>

Pulled into my ntb branch.  I added:
    Fixes: a1b3695820aa ("NTB: Add support for AMD PCI-Express Non-Transparent Bridge")

Thanks,
Jon

> ---
> 
> changed commit massage.
> 
>  drivers/ntb/hw/amd/ntb_hw_amd.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
> index 88e1db6..71428d8 100644
> --- a/drivers/ntb/hw/amd/ntb_hw_amd.c
> +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
> @@ -1203,6 +1203,7 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev,
>  
>  err_dma_mask:
>  	pci_clear_master(pdev);
> +	pci_release_regions(pdev);
>  err_pci_regions:
>  	pci_disable_device(pdev);
>  err_pci_enable:
> -- 
> 2.1.0
>