devm_regmap_field_alloc may fails, priv field might be error pointer and cause illegal address access later. Signed-off-by: Kang Chen <void0red@xxxxxxxxx> --- v2 -> v1: add missing parenthesis and switch to use PTR_ERR drivers/hwspinlock/qcom_hwspinlock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hwspinlock/qcom_hwspinlock.c b/drivers/hwspinlock/qcom_hwspinlock.c index 9cf186362..dee7bb5ea 100644 --- a/drivers/hwspinlock/qcom_hwspinlock.c +++ b/drivers/hwspinlock/qcom_hwspinlock.c @@ -197,6 +197,8 @@ static int qcom_hwspinlock_probe(struct platform_device *pdev) bank->lock[i].priv = devm_regmap_field_alloc(&pdev->dev, regmap, field); + if (IS_ERR(bank->lock[i].priv)) + return PTR_ERR(bank->lock[i].priv); } return devm_hwspin_lock_register(&pdev->dev, bank, &qcom_hwspinlock_ops, -- 2.34.1
