[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20221214131617.2447-4-johan+linaro@kernel.org>
Date: Wed, 14 Dec 2022 14:16:16 +0100
From: Johan Hovold <johan+linaro@...nel.org>
To: Daniel Lezcano <daniel.lezcano@...aro.org>,
"Rafael J. Wysocki" <rafael@...nel.org>
Cc: Amit Kucheria <amitk@...nel.org>,
Thara Gopinath <thara.gopinath@...il.com>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Zhang Rui <rui.zhang@...el.com>,
Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Alim Akhtar <alim.akhtar@...sung.com>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
linux-pm@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH 3/4] thermal/drivers/tegra: fix set_trip_temp() deadlock
The set_trip_temp() callback is used when changing the trip temperature
through sysfs. As it is called with the thermal-zone-device lock held
it must not use thermal_zone_get_trip() directly or it will deadlock.
Fixes: 56d7b397cc29 ("thermal/drivers/tegra: Use generic thermal_zone_get_trip() function")
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
drivers/thermal/tegra/soctherm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
index 4203e74e2f79..220873298d77 100644
--- a/drivers/thermal/tegra/soctherm.c
+++ b/drivers/thermal/tegra/soctherm.c
@@ -594,7 +594,7 @@ static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip
if (!tz)
return -EINVAL;
- ret = thermal_zone_get_trip(tz, trip_id, &trip);
+ ret = __thermal_zone_get_trip(tz, trip_id, &trip);
if (ret)
return ret;
--
2.37.4
Powered by blists - more mailing lists