linux-kernel - [PATCH v1 2/3] spi: gpio: Use traditional pattern when checking error codes

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Date: Fri, 17 May 2024 22:42:02 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Mark Brown <broonie@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 2/3] spi: gpio: Use traditional pattern when checking error codes

Instead of 'if (!ret)' switch to "check for the error first" rule.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/spi/spi-gpio.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index abf426711c22..36c587be9e28 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -239,8 +239,8 @@ static void spi_gpio_chipselect(struct spi_device *spi, int is_active)
 static int spi_gpio_setup(struct spi_device *spi)
 {
 	struct gpio_desc	*cs;
-	int			status = 0;
 	struct spi_gpio		*spi_gpio = spi_to_spi_gpio(spi);
+	int ret;
 
 	/*
 	 * The CS GPIOs have already been
@@ -248,15 +248,14 @@ static int spi_gpio_setup(struct spi_device *spi)
 	 */
 	if (spi_gpio->cs_gpios) {
 		cs = spi_gpio->cs_gpios[spi_get_chipselect(spi, 0)];
-		if (!spi->controller_state && cs)
-			status = gpiod_direction_output(cs,
-						  !(spi->mode & SPI_CS_HIGH));
+		if (!spi->controller_state && cs) {
+			ret = gpiod_direction_output(cs, !(spi->mode & SPI_CS_HIGH));
+			if (ret)
+				return ret;
+		}
 	}
 
-	if (!status)
-		status = spi_bitbang_setup(spi);
-
-	return status;
+	return spi_bitbang_setup(spi);
 }
 
 static int spi_gpio_set_direction(struct spi_device *spi, bool output)
-- 
2.43.0.rc1.1336.g36b5255a03ac