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Groups > linux.kernel > #1456391

[PATCH 1/2] iio: adc: Use complete() instead of complete_all()

From Daniel Wagner <wagi@monom.org>
Newsgroups linux.kernel
Subject [PATCH 1/2] iio: adc: Use complete() instead of complete_all()
Date 2016-08-04 15:10 +0200
Message-ID <s2qzn-166-9@gated-at.bofh.it> (permalink)
References <s2qzn-166-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Daniel Wagner <daniel.wagner@bmw-carit.de>

There is only one waiter for the completion, therefore there
is no need to use complete_all(). Let's make that clear by
using complete() instead of complete_all().

The usage pattern of the completion is:

waiter context                          waker context

nau7802_read_irq()
  reinit_completion()
  nau7802_read_conversion()
  wait_for_completion_interruptible_timeout()

                                        nau7802_eoc_trigger()
                                          complete()

Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
---
 drivers/iio/adc/nau7802.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c
index db9b829..08f4466 100644
--- a/drivers/iio/adc/nau7802.c
+++ b/drivers/iio/adc/nau7802.c
@@ -197,7 +197,7 @@ static irqreturn_t nau7802_eoc_trigger(int irq, void *private)
 	if (st->conversion_count < NAU7802_MIN_CONVERSIONS)
 		st->conversion_count++;
 	if (st->conversion_count >= NAU7802_MIN_CONVERSIONS)
-		complete_all(&st->value_ok);
+		complete(&st->value_ok);
 
 	return IRQ_HANDLED;
 }
-- 
2.7.4

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[PATCH 0/2]  Use complete() instead of complete_all() Daniel Wagner <wagi@monom.org> - 2016-08-04 15:10 +0200
  [PATCH 1/2] iio: adc: Use complete() instead of complete_all() Daniel Wagner <wagi@monom.org> - 2016-08-04 15:10 +0200
  [PATCH 2/2] iio: sx9500: Use complete() instead of complete_all() Daniel Wagner <wagi@monom.org> - 2016-08-04 15:10 +0200

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