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Message-ID: <20240429113313.68359-7-wsa+renesas@sang-engineering.com>
Date: Mon, 29 Apr 2024 13:33:09 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: linux-iio@...r.kernel.org
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>,
Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 6/8] iio: adc: stm32-dfsdm-adc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_completion_interruptible_timeout() causing patterns like:
timeout = wait_for_completion_interruptible_timeout(...)
if (!timeout) return -ETIMEDOUT;
with all kinds of permutations. Use 'time_left' as a variable to make the code
self explaining.
Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
---
drivers/iio/adc/stm32-dfsdm-adc.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index ca08ae3108b2..9a47d2c87f05 100644
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -1116,7 +1116,7 @@ static int stm32_dfsdm_single_conv(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan, int *res)
{
struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
- long timeout;
+ long time_left;
int ret;
reinit_completion(&adc->completion);
@@ -1141,17 +1141,17 @@ static int stm32_dfsdm_single_conv(struct iio_dev *indio_dev,
goto stop_dfsdm;
}
- timeout = wait_for_completion_interruptible_timeout(&adc->completion,
- DFSDM_TIMEOUT);
+ time_left = wait_for_completion_interruptible_timeout(&adc->completion,
+ DFSDM_TIMEOUT);
/* Mask IRQ for regular conversion achievement*/
regmap_update_bits(adc->dfsdm->regmap, DFSDM_CR2(adc->fl_id),
DFSDM_CR2_REOCIE_MASK, DFSDM_CR2_REOCIE(0));
- if (timeout == 0)
+ if (time_left == 0)
ret = -ETIMEDOUT;
- else if (timeout < 0)
- ret = timeout;
+ else if (time_left < 0)
+ ret = time_left;
else
ret = IIO_VAL_INT;
--
2.43.0
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