From: Zhang Enpei <zhang.enpei@zte.com.cn>
Date: Thu, 15 May 2025 12:13:12 +0000 (+0800)
Subject: OPP: switch to use kmemdup_array()
X-Git-Tag: v6.16-rc1~160^2~5^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=03eadcbd981b4c9b10ec89a046deeccb115c98b3;p=thirdparty%2Flinux.git

OPP: switch to use kmemdup_array()

Use kmemdup_array() to avoid multiplication and possible overflows.

Signed-off-by: Zhang Enpei <zhang.enpei@zte.com.cn>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 72fbb6cadc23d..edbd60501cf00 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2087,8 +2087,8 @@ static int _opp_set_supported_hw(struct opp_table *opp_table,
 	if (opp_table->supported_hw)
 		return 0;
 
-	opp_table->supported_hw = kmemdup(versions, count * sizeof(*versions),
-					GFP_KERNEL);
+	opp_table->supported_hw = kmemdup_array(versions, count,
+						sizeof(*versions), GFP_KERNEL);
 	if (!opp_table->supported_hw)
 		return -ENOMEM;