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From: Thorsten Blum <thorsten.blum@linux.dev>
To: "Rafael J. Wysocki" <rafael@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Zhang Rui <rui.zhang@intel.com>,
	Lukasz Luba <lukasz.luba@arm.com>,
	Orson Zhai <orsonzhai@gmail.com>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	Chunyan Zhang <zhang.lyra@gmail.com>,
	Freeman Liu <freeman.liu@unisoc.com>
Cc: Thorsten Blum <thorsten.blum@linux.dev>,
	stable@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH RESEND] thermal: sprd: Fix temperature clamping in sprd_thm_temp_to_rawdata
Date: Mon, 26 Jan 2026 08:49:14 +0100	[thread overview]
Message-ID: <20260126074913.212275-2-thorsten.blum@linux.dev> (raw)

The temperature was never clamped to SPRD_THM_TEMP_LOW or
SPRD_THM_TEMP_HIGH because the return value of clamp() was not used. Fix
this by assigning the clamped value to 'temp'.

Casting SPRD_THM_TEMP_LOW and SPRD_THM_TEMP_HIGH to int is also
redundant and can be removed.

Cc: stable@vger.kernel.org
Fixes: 554fdbaf19b1 ("thermal: sprd: Add Spreadtrum thermal driver support")
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 drivers/thermal/sprd_thermal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c
index e546067c9621..70c879e75d85 100644
--- a/drivers/thermal/sprd_thermal.c
+++ b/drivers/thermal/sprd_thermal.c
@@ -192,7 +192,7 @@ static int sprd_thm_temp_to_rawdata(int temp, struct sprd_thermal_sensor *sen)
 {
 	u32 val;
 
-	clamp(temp, (int)SPRD_THM_TEMP_LOW, (int)SPRD_THM_TEMP_HIGH);
+	temp = clamp(temp, SPRD_THM_TEMP_LOW, SPRD_THM_TEMP_HIGH);
 
 	/*
 	 * According to the thermal datasheet, the formula of converting
-- 
Thorsten Blum <thorsten.blum@linux.dev>
GPG: 1D60 735E 8AEF 3BE4 73B6  9D84 7336 78FD 8DFE EAD4


             reply	other threads:[~2026-01-26  7:49 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-26  7:49 Thorsten Blum [this message]
  -- strict thread matches above, loose matches on Subject: below --
2026-02-24 14:53 [PATCH RESEND] thermal: sprd: Fix temperature clamping in sprd_thm_temp_to_rawdata Thorsten Blum

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