From: Ira Weiny <ira.weiny@intel.com>
To: Chen Ni <nichen@iscas.ac.cn>, <oohall@gmail.com>,
<dan.j.williams@intel.com>, <vishal.l.verma@intel.com>,
<dave.jiang@intel.com>, <ira.weiny@intel.com>,
<aneesh.kumar@linux.ibm.com>
Cc: <nvdimm@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
Chen Ni <nichen@iscas.ac.cn>
Subject: Re: [PATCH v3] libnvdimm/of_pmem: Use devm_kstrdup instead of kstrdup and check its return value
Date: Fri, 15 Sep 2023 09:44:45 -0700 [thread overview]
Message-ID: <650489fd836d_37804029451@iweiny-mobl.notmuch> (raw)
In-Reply-To: <20230914070328.2121-1-nichen@iscas.ac.cn>
Chen Ni wrote:
> Use devm_kstrdup() instead of kstrdup() and check its return value to
> avoid memory leak.
>
> Fixes: 49bddc73d15c ("libnvdimm/of_pmem: Provide a unique name for bus provider")
> Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
> ---
> Changelog:
>
> v2 -> v3:
>
> 1. Use devm_kstrdup() instead of kstrdup()
>
> v1 -> v2:
>
> 1. Add a fixes tag.
> 2. Update commit message.
> ---
> drivers/nvdimm/of_pmem.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c
> index 1b9f5b8a6167..5765674b36f2 100644
> --- a/drivers/nvdimm/of_pmem.c
> +++ b/drivers/nvdimm/of_pmem.c
> @@ -30,7 +30,13 @@ static int of_pmem_region_probe(struct platform_device *pdev)
> if (!priv)
> return -ENOMEM;
>
> - priv->bus_desc.provider_name = kstrdup(pdev->name, GFP_KERNEL);
> + priv->bus_desc.provider_name = devm_kstrdup(&pdev->dev, pdev->name,
> + GFP_KERNEL);
> + if (!priv->bus_desc.provider_name) {
> + kfree(priv);
> + return -ENOMEM;
> + }
> +
> priv->bus_desc.module = THIS_MODULE;
> priv->bus_desc.of_node = np;
>
> --
> 2.25.1
>
prev parent reply other threads:[~2023-09-15 16:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-14 7:03 [PATCH v3] libnvdimm/of_pmem: Use devm_kstrdup instead of kstrdup and check its return value Chen Ni
2023-09-14 15:31 ` Dave Jiang
2023-09-14 19:47 ` Ira Weiny
2023-09-15 16:44 ` Ira Weiny [this message]
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