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soc: qcom: Add check devm_kasprintf() returned value

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[ Upstream commit e694d2b5c58ba2d1e995d068707c8d966e7f5f2a ]

devm_kasprintf() can return a NULL pointer on failure but this
returned value in qcom_socinfo_probe() is not checked.

Signed-off-by: Charles Han <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Charles Han 2024-09-29 15:23:49 +08:00 • committed by Greg Kroah-Hartman
commit e5137997b8
1 changed files with 7 additions and 1 deletions
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8
drivers/soc/qcom/socinfo.c
View file

@ -433,10 +433,16 @@ static int qcom_socinfo_probe(struct platform_device *pdev)
qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u",
SOCINFO_MAJOR(le32_to_cpu(info->ver)),
SOCINFO_MINOR(le32_to_cpu(info->ver)));
if (offsetof(struct socinfo, serial_num) <= item_size)
if (!qs->attr.soc_id || qs->attr.revision)
return -ENOMEM;
if (offsetof(struct socinfo, serial_num) <= item_size) {
qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL,
"%u",
le32_to_cpu(info->serial_num));
if (!qs->attr.serial_number)
return -ENOMEM;
}
qs->soc_dev = soc_device_register(&qs->attr);
if (IS_ERR(qs->soc_dev))