linux-kernel - [PATCH] thermal/drivers/mediatek/lvts_thermal: Check NULL ptr on lvts

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Date: Thu, 02 May 2024 15:46:03 +0200
From: Julien Panis <jpanis@...libre.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>, 
 Lukasz Luba <lukasz.luba@....com>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Nicolas Pitre <npitre@...libre.com>
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 Julien Panis <jpanis@...libre.com>
Subject: [PATCH] thermal/drivers/mediatek/lvts_thermal: Check NULL ptr on
 lvts_data

Verify that lvts_data is not NULL before using it.

Signed-off-by: Julien Panis <jpanis@...libre.com>
---
At probe, verify that lvts_data is not NULL before using it.
---
 drivers/thermal/mediatek/lvts_thermal.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index 86b2f44355ac..20a64b68f9c0 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -1271,6 +1271,8 @@ static int lvts_probe(struct platform_device *pdev)
 		return -ENOMEM;

 	lvts_data = of_device_get_match_data(dev);
+	if (!lvts_data)
+		return -ENODEV;

 	lvts_td->clk = devm_clk_get_enabled(dev, NULL);
 	if (IS_ERR(lvts_td->clk))

---
base-commit: 9c6ecb3cb6e20c4fd7997047213ba0efcf9ada1a
change-id: 20240502-mtk-thermal-lvts-data-4b19d0685024

Best regards,
-- 
Julien Panis <jpanis@...libre.com>