linux-kernel - [PATCH 7/8] iio: adc: twl6030-gpadc: use 'time_left' variable with wait_for_completion_interruptible

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Date: Mon, 29 Apr 2024 13:33:10 +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>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 7/8] iio: adc: twl6030-gpadc: 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/twl6030-gpadc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index 78bf55438b2c..6a3db2bce460 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -519,7 +519,7 @@ static int twl6030_gpadc_read_raw(struct iio_dev *indio_dev,
 {
 	struct twl6030_gpadc_data *gpadc = iio_priv(indio_dev);
 	int ret;
-	long timeout;
+	long time_left;
 
 	mutex_lock(&gpadc->lock);
 
@@ -529,12 +529,12 @@ static int twl6030_gpadc_read_raw(struct iio_dev *indio_dev,
 		goto err;
 	}
 	/* wait for conversion to complete */
-	timeout = wait_for_completion_interruptible_timeout(
+	time_left = wait_for_completion_interruptible_timeout(
 				&gpadc->irq_complete, msecs_to_jiffies(5000));
-	if (timeout == 0) {
+	if (time_left == 0) {
 		ret = -ETIMEDOUT;
 		goto err;
-	} else if (timeout < 0) {
+	} else if (time_left < 0) {
 		ret = -EINTR;
 		goto err;
 	}
-- 
2.43.0