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From: Vidya Sagar <vidyas@nvidia.com>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	<thierry.reding@gmail.com>, <lorenzo.pieralisi@arm.com>,
	<robh@kernel.org>, <bhelgaas@google.com>, <jonathanh@nvidia.com>
Cc: <linux-tegra@vger.kernel.org>, <linux-pci@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <kernel-janitors@vger.kernel.org>
Subject: Re: [PATCH 1/3] PCI: tegra: Fix OF node reference leak
Date: Mon, 5 Jul 2021 22:30:46 +0530	[thread overview]
Message-ID: <636d7c23-4fdf-a6b1-5d92-2573a2e67db4@nvidia.com> (raw)
In-Reply-To: <55b11e9a7fa2987fbc0869d68ae59888954d65e2.1620148539.git.christophe.jaillet@wanadoo.fr>

Reviewed-by: Vidya Sagar <vidyas@nvidia.com>

On 5/4/2021 10:47 PM, Christophe JAILLET wrote:
> Commit 9e38e690ace3 ("PCI: tegra: Fix OF node reference leak") has fixed
> some node reference leaks in this function but missed some of them.
> 
> In fact, having 'port' referenced in the 'rp' structure is not enough to
> prevent the leak, until 'rp' is actually added in the 'pcie->ports' list.
> 
> Add the missing 'goto err_node_put' accordingly.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
>   drivers/pci/controller/pci-tegra.c | 13 ++++++++-----
>   1 file changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
> index 8069bd9232d4..006bf0346dec 100644
> --- a/drivers/pci/controller/pci-tegra.c
> +++ b/drivers/pci/controller/pci-tegra.c
> @@ -2193,13 +2193,15 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
>   		rp->np = port;
>   
>   		rp->base = devm_pci_remap_cfg_resource(dev, &rp->regs);
> -		if (IS_ERR(rp->base))
> -			return PTR_ERR(rp->base);
> +		if (IS_ERR(rp->base)) {
> +			err = PTR_ERR(rp->base);
> +			goto err_node_put;
> +		}
>   
>   		label = devm_kasprintf(dev, GFP_KERNEL, "pex-reset-%u", index);
>   		if (!label) {
> -			dev_err(dev, "failed to create reset GPIO label\n");
> -			return -ENOMEM;
> +			err = -ENOMEM;
> +			goto err_node_put;
>   		}
>   
>   		/*
> @@ -2217,7 +2219,8 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
>   			} else {
>   				dev_err(dev, "failed to get reset GPIO: %ld\n",
>   					PTR_ERR(rp->reset_gpio));
> -				return PTR_ERR(rp->reset_gpio);
> +				err = PTR_ERR(rp->reset_gpio);
> +				goto err_node_put;
>   			}
>   		}
>   
> 

  parent reply	other threads:[~2021-07-05 17:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-04 17:17 Christophe JAILLET
2021-05-04 17:17 ` [PATCH 2/3] PCI: tegra: Use 'seq_puts' instead of 'seq_printf' Christophe JAILLET
2021-07-05 17:01   ` Vidya Sagar
2021-05-04 17:18 ` [PATCH 3/3] PCI: tegra: make const array err_msg static Christophe JAILLET
2021-07-05 17:01   ` Vidya Sagar
2021-07-05 22:31   ` Krzysztof Wilczyński
2021-07-07 18:24     ` Christophe JAILLET
2021-07-07 19:52       ` Krzysztof Wilczyński
2021-06-22 10:42 ` [PATCH 1/3] PCI: tegra: Fix OF node reference leak Lorenzo Pieralisi
2021-07-05 17:00 ` Vidya Sagar [this message]
2021-08-05 10:43 ` Lorenzo Pieralisi

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