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]
Message-Id: <20181012072017.10765-4-geert+renesas@glider.be>
Date:   Fri, 12 Oct 2018 09:20:17 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Support Opensource <support.opensource@...semi.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        linux-pm@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH v2 3/3] thermal: da9062/61: Prevent hardware access during system suspend

The workqueue used for monitoring the hardware may run while the device
is already suspended.  Fix this by using the freezable system workqueue
instead, cfr. commit 51e20d0e3a60cf46 ("thermal: Prevent polling from
happening during system suspend").

Fixes: 608567aac3206ae8 ("thermal: da9062/61: Thermal junction temperature monitoring driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
Untested due to lack of hardware.

v2:
  - No changes.
---
 drivers/thermal/da9062-thermal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index dd8dd947b7f0737c..01b0cb9944577851 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/drivers/thermal/da9062-thermal.c
@@ -106,7 +106,7 @@ static void da9062_thermal_poll_on(struct work_struct *work)
 					   THERMAL_EVENT_UNSPECIFIED);
 
 		delay = msecs_to_jiffies(thermal->zone->passive_delay);
-		schedule_delayed_work(&thermal->work, delay);
+		queue_delayed_work(system_freezable_wq, &thermal->work, delay);
 		return;
 	}
 
@@ -125,7 +125,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
 	struct da9062_thermal *thermal = data;
 
 	disable_irq_nosync(thermal->irq);
-	schedule_delayed_work(&thermal->work, 0);
+	queue_delayed_work(system_freezable_wq, &thermal->work, 0);
 
 	return IRQ_HANDLED;
 }
-- 
2.17.1

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ