linux-kernel - [PATCH v2 4/8] spi: pic32-sqi: use 'time_left' variable with wait_for_completion

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Date: Tue, 30 Apr 2024 13:41:36 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: linux-spi@...r.kernel.org
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Mark Brown <broonie@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 4/8] spi: pic32-sqi: use 'time_left' variable with wait_for_completion_timeout()

There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_completion_timeout() causing patterns like:

	timeout = wait_for_completion_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/spi/spi-pic32-sqi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-pic32-sqi.c b/drivers/spi/spi-pic32-sqi.c
index 3f1e5b27776b..0031063a7e25 100644
--- a/drivers/spi/spi-pic32-sqi.c
+++ b/drivers/spi/spi-pic32-sqi.c
@@ -344,7 +344,7 @@ static int pic32_sqi_one_message(struct spi_controller *host,
 	struct spi_transfer *xfer;
 	struct pic32_sqi *sqi;
 	int ret = 0, mode;
-	unsigned long timeout;
+	unsigned long time_left;
 	u32 val;
 
 	sqi = spi_controller_get_devdata(host);
@@ -410,8 +410,8 @@ static int pic32_sqi_one_message(struct spi_controller *host,
 	writel(val, sqi->regs + PESQI_BD_CTRL_REG);
 
 	/* wait for xfer completion */
-	timeout = wait_for_completion_timeout(&sqi->xfer_done, 5 * HZ);
-	if (timeout == 0) {
+	time_left = wait_for_completion_timeout(&sqi->xfer_done, 5 * HZ);
+	if (time_left == 0) {
 		dev_err(&sqi->host->dev, "wait timedout/interrupted\n");
 		ret = -ETIMEDOUT;
 		msg->status = ret;
-- 
2.43.0