* [PATCH] soc/fsl/guts: Add a NULL check for devm_kasprintf()
@ 2018-01-06 13:22 Fabio Estevam
2018-01-08 3:06 ` Y.b. Lu
0 siblings, 1 reply; 3+ messages in thread
From: Fabio Estevam @ 2018-01-06 13:22 UTC (permalink / raw)
To: leoyang.li; +Cc: linuxppc-dev, yangbo.lu, Fabio Estevam
From: Fabio Estevam <fabio.estevam@nxp.com>
devm_kasprintf() may fail, so we should better add a NULL check
and propagate an error on failure.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
---
drivers/soc/fsl/guts.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
index d89a6a8..82251b4 100644
--- a/drivers/soc/fsl/guts.c
+++ b/drivers/soc/fsl/guts.c
@@ -167,10 +167,16 @@ static int fsl_guts_probe(struct platform_device *pdev)
} else {
soc_dev_attr.family = devm_kasprintf(dev, GFP_KERNEL, "QorIQ");
}
+ if (!soc_dev_attr.family)
+ return -ENOMEM;
soc_dev_attr.soc_id = devm_kasprintf(dev, GFP_KERNEL,
"svr:0x%08x", svr);
+ if (!soc_dev_attr.soc_id)
+ return -ENOMEM;
soc_dev_attr.revision = devm_kasprintf(dev, GFP_KERNEL, "%d.%d",
(svr >> 4) & 0xf, svr & 0xf);
+ if (!soc_dev_attr.revision)
+ return -ENOMEM;
soc_dev = soc_device_register(&soc_dev_attr);
if (IS_ERR(soc_dev))
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* RE: [PATCH] soc/fsl/guts: Add a NULL check for devm_kasprintf()
2018-01-06 13:22 [PATCH] soc/fsl/guts: Add a NULL check for devm_kasprintf() Fabio Estevam
@ 2018-01-08 3:06 ` Y.b. Lu
2018-01-10 22:48 ` Li Yang
0 siblings, 1 reply; 3+ messages in thread
From: Y.b. Lu @ 2018-01-08 3:06 UTC (permalink / raw)
To: Fabio Estevam, Leo Li; +Cc: linuxppc-dev, Fabio Estevam
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] soc/fsl/guts: Add a NULL check for devm_kasprintf()
2018-01-08 3:06 ` Y.b. Lu
@ 2018-01-10 22:48 ` Li Yang
0 siblings, 0 replies; 3+ messages in thread
From: Li Yang @ 2018-01-10 22:48 UTC (permalink / raw)
To: Y.b. Lu; +Cc: Fabio Estevam, Fabio Estevam, linuxppc-dev
On Sun, Jan 7, 2018 at 9:06 PM, Y.b. Lu <yangbo.lu@nxp.com> wrote:
>> -----Original Message-----
>> From: Fabio Estevam [mailto:festevam@gmail.com]
>> Sent: 2018=E5=B9=B41=E6=9C=886=E6=97=A5 21:23
>> To: Leo Li <leoyang.li@nxp.com>
>> Cc: linuxppc-dev@lists.ozlabs.org; Y.b. Lu <yangbo.lu@nxp.com>; Fabio
>> Estevam <fabio.estevam@nxp.com>
>> Subject: [PATCH] soc/fsl/guts: Add a NULL check for devm_kasprintf()
>>
>> From: Fabio Estevam <fabio.estevam@nxp.com>
>>
>> devm_kasprintf() may fail, so we should better add a NULL check and
>> propagate an error on failure.
>>
>> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
>
> [Y.b. Lu] It makes sense.
> Acked-by: Yangbo Lu <yangbo.lu@nxp.com>
Merged. Thanks.
>
>> ---
>> drivers/soc/fsl/guts.c | 6 ++++++
>> 1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c index
>> d89a6a8..82251b4 100644
>> --- a/drivers/soc/fsl/guts.c
>> +++ b/drivers/soc/fsl/guts.c
>> @@ -167,10 +167,16 @@ static int fsl_guts_probe(struct platform_device
>> *pdev)
>> } else {
>> soc_dev_attr.family =3D devm_kasprintf(dev, GFP_KERNEL, "Q=
orIQ");
>> }
>> + if (!soc_dev_attr.family)
>> + return -ENOMEM;
>> soc_dev_attr.soc_id =3D devm_kasprintf(dev, GFP_KERNEL,
>> "svr:0x%08x", svr);
>> + if (!soc_dev_attr.soc_id)
>> + return -ENOMEM;
>> soc_dev_attr.revision =3D devm_kasprintf(dev, GFP_KERNEL, "%d.%d",
>> (svr >> 4) & 0xf, svr & 0x=
f);
>> + if (!soc_dev_attr.revision)
>> + return -ENOMEM;
>>
>> soc_dev =3D soc_device_register(&soc_dev_attr);
>> if (IS_ERR(soc_dev))
>> --
>> 2.7.4
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-01-10 22:48 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2018-01-06 13:22 [PATCH] soc/fsl/guts: Add a NULL check for devm_kasprintf() Fabio Estevam
2018-01-08 3:06 ` Y.b. Lu
2018-01-10 22:48 ` Li Yang
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