linux-kernel - [PATCH] usb: typec: qcom-pmic-typec: use kcalloc() instead of kzalloc()

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Message-Id: <20250819090125.540682-1-rongqianfeng@vivo.com>
Date: Tue, 19 Aug 2025 17:01:24 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: "Bryan O'Donoghue" <bryan.odonoghue@...aro.org>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-arm-msm@...r.kernel.org,
	linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Qianfeng Rong <rongqianfeng@...o.com>
Subject: [PATCH] usb: typec: qcom-pmic-typec: use kcalloc() instead of kzalloc()

Replace devm_kzalloc() with devm_kcalloc() in qcom_pmic_typec_pdphy_probe()
and qcom_pmic_typec_port_probe() for safer memory allocation with built-in
overflow protection.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c | 2 +-
 drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c
index 18303b34594b..c8b1463e6e8b 100644
--- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c
+++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c
@@ -567,7 +567,7 @@ int qcom_pmic_typec_pdphy_probe(struct platform_device *pdev,
 	if (!res->nr_irqs || res->nr_irqs > PMIC_PDPHY_MAX_IRQS)
 		return -EINVAL;
 
-	irq_data = devm_kzalloc(dev, sizeof(*irq_data) * res->nr_irqs,
+	irq_data = devm_kcalloc(dev, res->nr_irqs, sizeof(*irq_data),
 				GFP_KERNEL);
 	if (!irq_data)
 		return -ENOMEM;
diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c
index 4fc83dcfae64..8051eaa46991 100644
--- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c
+++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c
@@ -713,7 +713,7 @@ int qcom_pmic_typec_port_probe(struct platform_device *pdev,
 	if (!res->nr_irqs || res->nr_irqs > PMIC_TYPEC_MAX_IRQS)
 		return -EINVAL;
 
-	irq_data = devm_kzalloc(dev, sizeof(*irq_data) * res->nr_irqs,
+	irq_data = devm_kcalloc(dev, res->nr_irqs, sizeof(*irq_data),
 				GFP_KERNEL);
 	if (!irq_data)
 		return -ENOMEM;
-- 
2.34.1