linux-kernel - [PATCH] regulator: core: use kfree_const() to free space conditionally

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Message-ID: <20221123034616.3609537-1-bobo.shaobowang@huawei.com>
Date:   Wed, 23 Nov 2022 11:46:16 +0800
From:   Wang ShaoBo <bobo.shaobowang@...wei.com>
To:     unlisted-recipients:; (no To-header on input)
CC:     <liwei391@...wei.com>, <broonie@...nel.org>,
        <linux-kernel@...r.kernel.org>, <lgirdwood@...il.com>,
        <bobo.shaobowang@...wei.com>
Subject: [PATCH] regulator: core: use kfree_const() to free space conditionally

Use kfree_const() to free supply_name conditionally in create_regulator()
as supply_name may be allocated from kmalloc() or directly from .rodata
section.

Fixes: 87fe29b61f95 ("regulator: push allocations in create_regulator() outside of lock")
Signed-off-by: Wang ShaoBo <bobo.shaobowang@...wei.com>
---
 drivers/regulator/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index bcccad8f7516..eb0dae6b3c4a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1813,7 +1813,7 @@ static struct regulator *create_regulator(struct regulator_dev *rdev,
 
 	regulator = kzalloc(sizeof(*regulator), GFP_KERNEL);
 	if (regulator == NULL) {
-		kfree(supply_name);
+		kfree_const(supply_name);
 		return NULL;
 	}
 
-- 
2.25.1