linux-kernel - [PATCH 07/18] thermal: exynos: remove threshold_code checking from exynos4210_tmu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 26 Apr 2018 13:51:22 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Eduardo Valentin <edubezval@...il.com>
Cc:     Zhang Rui <rui.zhang@...el.com>, linux-samsung-soc@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        b.zolnierkie@...sung.com
Subject: [PATCH 07/18] thermal: exynos: remove threshold_code checking from
 exynos4210_tmu_initialize()

On Exynos4210 one-point trimming is always used and data->temp_error1
is equal to 75. Therefore temp_to_code() will never return negative
value for the reference temperature conversion.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
 drivers/thermal/samsung/exynos_tmu.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 58cd68e..26a0cb9 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -423,10 +423,6 @@ static int exynos4210_tmu_initialize(struct platform_device *pdev)
 	/* Write temperature code for threshold */
 	reference = trips[0].temperature / MCELSIUS;
 	threshold_code = temp_to_code(data, reference);
-	if (threshold_code < 0) {
-		ret = threshold_code;
-		goto out;
-	}
 	writeb(threshold_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
 
 	for (i = 0; i < of_thermal_get_ntrips(tz); i++) {
@@ -436,7 +432,7 @@ static int exynos4210_tmu_initialize(struct platform_device *pdev)
 	}
 
 	data->tmu_clear_irqs(data);
-out:
+
 	return ret;
 }
 
-- 
1.9.1