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 <hanchunchao@xxxxxxxxxx>
---
drivers/soc/qcom/socinfo.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/socinfo.c b/drivers/soc/qcom/socinfo.c
index 24c3971f2ef1..e42d86d5f6f9 100644
--- a/drivers/soc/qcom/socinfo.c
+++ b/drivers/soc/qcom/socinfo.c
@@ -786,10 +786,16 @@ 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))
--
2.31.1
