linux-kernel - Re: [PATCH 5/6] soc/tegra: pmc: Add missing of_node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 28 Jun 2016 11:46:10 +0100
From:	Jon Hunter <jonathanh@...dia.com>
To:	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>
CC:	<linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/6] soc/tegra: pmc: Add missing of_node_put


On 28/06/16 11:38, Jon Hunter wrote:
> Add missing of_node_put() in PMC early initialisation function.
> 
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> ---
>  drivers/soc/tegra/pmc.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
> index 483d54623ec5..e62acaef140a 100644
> --- a/drivers/soc/tegra/pmc.c
> +++ b/drivers/soc/tegra/pmc.c
> @@ -1572,6 +1572,8 @@ static int __init tegra_pmc_early_init(void)
>  			value &= ~PMC_CNTRL_INTR_POLARITY;
>  
>  		tegra_pmc_writel(value, PMC_CNTRL);
> +
> +		of_node_put(np);
>  	}
>  
>  	return 0;

Actually there are a couple other places we should put the node ...

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 483d54623ec5..48e1de2f7aeb 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -1540,6 +1540,7 @@ static int __init tegra_pmc_early_init(void)
                 */
                if (of_address_to_resource(np, 0, &regs) < 0) {
                        pr_err("failed to get PMC registers\n");
+                       of_node_put(np);
                        return -ENXIO;
                }
        }
@@ -1547,6 +1548,7 @@ static int __init tegra_pmc_early_init(void)
        pmc->base = ioremap_nocache(regs.start, resource_size(&regs));
        if (!pmc->base) {
                pr_err("failed to map PMC registers\n");
+               of_node_put(np);
                return -ENXIO;
        }

@@ -1572,6 +1574,8 @@ static int __init tegra_pmc_early_init(void)
                        value &= ~PMC_CNTRL_INTR_POLARITY;

                tegra_pmc_writel(value, PMC_CNTRL);
+
+               of_node_put(np);
        }

        return 0;

-- 
nvpublic