From: Christian Eggers <ceggers@arri.de>
To: Jonathan Cameron <jic23@kernel.org>
Cc: Christian Eggers <ceggers@arri.de>, <stable@vger.kernel.org>,
"Hartmut Knaack" <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
"Peter Meerwald-Stadler" <pmeerw@pmeerw.net>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Alexandru Ardelean <alexandru.ardelean@analog.com>,
<linux-iio@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/2] iio: trigger: hrtimer: Disable irqs before calling iio_trigger_poll()
Date: Mon, 27 Jul 2020 16:58:59 +0200 [thread overview]
Message-ID: <20200727145900.4563-1-ceggers@arri.de> (raw)
iio_trigger_poll() calls generic_handle_irq(). This function expects to
be run with local IRQs disabled.
Signed-off-by: Christian Eggers <ceggers@arri.de>
Cc: stable@vger.kernel.org
---
drivers/iio/trigger/iio-trig-hrtimer.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iio/trigger/iio-trig-hrtimer.c b/drivers/iio/trigger/iio-trig-hrtimer.c
index f59bf8d58586..2fe8a5c1484e 100644
--- a/drivers/iio/trigger/iio-trig-hrtimer.c
+++ b/drivers/iio/trigger/iio-trig-hrtimer.c
@@ -89,7 +89,9 @@ static enum hrtimer_restart iio_hrtimer_trig_handler(struct hrtimer *timer)
info = container_of(timer, struct iio_hrtimer_info, timer);
hrtimer_forward_now(timer, info->period);
+ local_irq_disable();
iio_trigger_poll(info->swt.trigger);
+ local_irq_enable();
return HRTIMER_RESTART;
}
--
Christian Eggers
Embedded software developer
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRA 57918
Persoenlich haftender Gesellschafter: Arnold & Richter Cine Technik GmbH
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRB 54477
Geschaeftsfuehrer: Dr. Michael Neuhaeuser; Stephan Schenk; Walter Trauninger; Markus Zeiler
next reply other threads:[~2020-07-27 15:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-27 14:58 Christian Eggers [this message]
2020-07-30 13:48 ` [PATCH 1/2] iio: trigger: hrtimer: Disable irqs before calling iio_trigger_poll() Sasha Levin
2020-08-03 5:16 ` Christian Eggers
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