linux-kernel - [PATCH] wifi: mt76: Add check for devm

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Message-Id: <20250219033645.2594753-1-haoxiang_li2024@163.com>
Date: Wed, 19 Feb 2025 11:36:45 +0800
From: Haoxiang Li <haoxiang_li2024@....com>
To: nbd@....name,
	lorenzo@...nel.org,
	ryder.lee@...iatek.com,
	shayne.chen@...iatek.com,
	sean.wang@...iatek.com,
	johannes@...solutions.net,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com
Cc: linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Haoxiang Li <haoxiang_li2024@....com>,
	stable@...r.kernel.org
Subject: [PATCH] wifi: mt76: Add check for devm_kstrdup()

Add check for the return value of devm_kstrdup() in
mt76_get_of_data_from_mtd() to catch potential exception.

Fixes: e7a6a044f9b9 ("mt76: testmode: move mtd part to mt76_dev")
Cc: stable@...r.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@....com>
---
 drivers/net/wireless/mediatek/mt76/eeprom.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c
index 0bc66cc19acd..443517d06c9f 100644
--- a/drivers/net/wireless/mediatek/mt76/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/eeprom.c
@@ -95,6 +95,10 @@ int mt76_get_of_data_from_mtd(struct mt76_dev *dev, void *eep, int offset, int l
 
 #ifdef CONFIG_NL80211_TESTMODE
 	dev->test_mtd.name = devm_kstrdup(dev->dev, part, GFP_KERNEL);
+	if (!dev->test_mtd.name) {
+		ret = -ENOMEM;
+		goto out_put_node;
+	}
 	dev->test_mtd.offset = offset;
 #endif
 
-- 
2.25.1