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soc: fsl: guts: Add a NULL check for devm_kasprintf()

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devm_kasprintf() may fail, so we should better add a NULL check
and propagate an error on failure.

Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Yangbo Lu <[email protected]>
Signed-off-by: Li Yang <[email protected]>
This commit is contained in:
Fabio Estevam 2018-01-06 11:22:34 -02:00 • committed by Li Yang
commit 14b055f439
1 changed files with 6 additions and 0 deletions
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6
drivers/soc/fsl/guts.c
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@ -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))