* [PATCH 1/2] iio: trigger: hrtimer: Disable irqs before calling iio_trigger_poll()
@ 2020-07-27 14:58 Christian Eggers
0 siblings, 0 replies; only message in thread
From: Christian Eggers @ 2020-07-27 14:58 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Christian Eggers, stable, Hartmut Knaack, Lars-Peter Clausen,
Peter Meerwald-Stadler, Geert Uytterhoeven, Alexandru Ardelean,
linux-iio, linux-kernel
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
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2020-07-27 14:58 [PATCH 1/2] iio: trigger: hrtimer: Disable irqs before calling iio_trigger_poll() Christian Eggers
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