linux-kernel - [PATCH] regulator: bd718x7: Use kcalloc() instead of kzalloc()

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Message-Id: <20250817142327.174531-1-rongqianfeng@vivo.com>
Date: Sun, 17 Aug 2025 22:23:27 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Matti Vaittinen <mazziesaccount@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	linux-kernel@...r.kernel.org
Cc: Qianfeng Rong <rongqianfeng@...o.com>
Subject: [PATCH] regulator: bd718x7: Use kcalloc() instead of kzalloc()

Replace calls of 'devm_kzalloc(dev, count * sizeof([type]), flags)'
with 'devm_kcalloc(dev, count, sizeof([type]), flags)' in
setup_feedback_loop() for safer memory allocation with built-in
overflow protection.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 drivers/regulator/bd718x7-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/bd718x7-regulator.c b/drivers/regulator/bd718x7-regulator.c
index e803cc59d68a..022d98f3c32a 100644
--- a/drivers/regulator/bd718x7-regulator.c
+++ b/drivers/regulator/bd718x7-regulator.c
@@ -1598,7 +1598,7 @@ static int setup_feedback_loop(struct device *dev, struct device_node *np,
 		if (desc->n_linear_ranges && desc->linear_ranges) {
 			struct linear_range *new;
 
-			new = devm_kzalloc(dev, desc->n_linear_ranges *
+			new = devm_kcalloc(dev, desc->n_linear_ranges,
 					   sizeof(struct linear_range),
 					   GFP_KERNEL);
 			if (!new)
-- 
2.34.1