From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-spi@vger.kernel.org
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
Mark Brown <broonie@kernel.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/8] spi: armada-3700: use 'time_left' variable with wait_for_completion_timeout()
Date: Tue, 30 Apr 2024 13:41:33 +0200 [thread overview]
Message-ID: <20240430114142.28551-2-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20240430114142.28551-1-wsa+renesas@sang-engineering.com>
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.
Fix to the proper variable type 'unsigned long' while here.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/spi/spi-armada-3700.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c
index 3c9ed412932f..02c1e625742d 100644
--- a/drivers/spi/spi-armada-3700.c
+++ b/drivers/spi/spi-armada-3700.c
@@ -339,7 +339,7 @@ static irqreturn_t a3700_spi_interrupt(int irq, void *dev_id)
static bool a3700_spi_wait_completion(struct spi_device *spi)
{
struct a3700_spi *a3700_spi;
- unsigned int timeout;
+ unsigned long time_left;
unsigned int ctrl_reg;
unsigned long timeout_jiffies;
@@ -361,12 +361,12 @@ static bool a3700_spi_wait_completion(struct spi_device *spi)
a3700_spi->wait_mask);
timeout_jiffies = msecs_to_jiffies(A3700_SPI_TIMEOUT);
- timeout = wait_for_completion_timeout(&a3700_spi->done,
- timeout_jiffies);
+ time_left = wait_for_completion_timeout(&a3700_spi->done,
+ timeout_jiffies);
a3700_spi->wait_mask = 0;
- if (timeout)
+ if (time_left)
return true;
/* there might be the case that right after we checked the
--
2.43.0
next prev parent reply other threads:[~2024-04-30 11:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 11:41 [PATCH v2 0/8] spi: use 'time_left' instead of 'timeout' with wait_for_*() functions Wolfram Sang
2024-04-30 11:41 ` Wolfram Sang [this message]
2024-04-30 11:41 ` [PATCH v2 2/8] spi: fsl-lpspi: use 'time_left' variable with wait_for_completion_timeout() Wolfram Sang
2024-04-30 11:41 ` [PATCH v2 3/8] spi: imx: " Wolfram Sang
2024-04-30 11:41 ` [PATCH v2 4/8] spi: pic32-sqi: " Wolfram Sang
2024-04-30 11:41 ` [PATCH v2 5/8] spi: pic32: " Wolfram Sang
2024-04-30 11:41 ` [PATCH v2 6/8] spi: sun4i: " Wolfram Sang
2024-04-30 11:41 ` [PATCH v2 7/8] spi: sun6i: " Wolfram Sang
2024-04-30 11:41 ` [PATCH v2 8/8] spi: xlp: " Wolfram Sang
2024-05-02 3:57 ` [PATCH v2 0/8] spi: use 'time_left' instead of 'timeout' with wait_for_*() functions Mark Brown
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