spi: at91-usart: Use PTR_ERR_OR_ZERO() to simplify code

ruanjinjie-eng · broonie · commit 60ea3db33fbd · 2023-08-22T13:51:35.000+01:00
Return PTR_ERR_OR_ZERO() instead of return 0 or PTR_ERR() to simplify code. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Link: https://lore.kernel.org/r/20230822124643.987079-1-ruanjinjie@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c
@@ -485,10 +485,7 @@ static int at91_usart_gpio_setup(struct platform_device *pdev)
 
 	cs_gpios = devm_gpiod_get_array_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
 
-	if (IS_ERR(cs_gpios))
-		return PTR_ERR(cs_gpios);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(cs_gpios);
 }
 
 static int at91_usart_spi_probe(struct platform_device *pdev)

Original file line number	Diff line number	Diff line change
`@@ -485,10 +485,7 @@ static int at91_usart_gpio_setup(struct platform_device *pdev)`
`485`	`485`
`486`	`486`	`cs_gpios = devm_gpiod_get_array_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);`
`487`	`487`
`488`		`- if (IS_ERR(cs_gpios))`
`489`		`- return PTR_ERR(cs_gpios);`
`490`		`-`
`491`		`- return 0;`
	`488`	`+ return PTR_ERR_OR_ZERO(cs_gpios);`
`492`	`489`	`}`
`493`	`490`
`494`	`491`	`static int at91_usart_spi_probe(struct platform_device *pdev)`