linux-kernel - [PATCH v2 2/7] pps: clients: gpio: Use dev_err

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Message-Id: <20210318130321.24227-2-andriy.shevchenko@linux.intel.com>
Date:   Thu, 18 Mar 2021 15:03:16 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Rodolfo Giometti <giometti@...eenne.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Cc:     Ryan Govostes <rgovostes@...i.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH v2 2/7] pps: clients: gpio: Use dev_err_probe() to avoid log noise

When GPIO APIs return -EPROBE_DEFER there is no need to print the message,
especially taking into consideration that it may repeat several times.
Use dev_err_probe() to avoid log noise in such cases.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Rodolfo Giometti <giometti@...eenne.com>
---
 drivers/pps/clients/pps-gpio.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/pps/clients/pps-gpio.c b/drivers/pps/clients/pps-gpio.c
index f89c31aa66f1..78c9680e8063 100644
--- a/drivers/pps/clients/pps-gpio.c
+++ b/drivers/pps/clients/pps-gpio.c
@@ -110,19 +110,16 @@ static int pps_gpio_setup(struct platform_device *pdev)
 	data->gpio_pin = devm_gpiod_get(&pdev->dev,
 		NULL,	/* request "gpios" */
 		GPIOD_IN);
-	if (IS_ERR(data->gpio_pin)) {
-		dev_err(&pdev->dev,
-			"failed to request PPS GPIO\n");
-		return PTR_ERR(data->gpio_pin);
-	}
+	if (IS_ERR(data->gpio_pin))
+		return dev_err_probe(&pdev->dev, PTR_ERR(data->gpio_pin),
+				     "failed to request PPS GPIO\n");
 
 	data->echo_pin = devm_gpiod_get_optional(&pdev->dev,
 			"echo",
 			GPIOD_OUT_LOW);
-	if (IS_ERR(data->echo_pin)) {
-		dev_err(&pdev->dev, "failed to request ECHO GPIO\n");
-		return PTR_ERR(data->echo_pin);
-	}
+	if (IS_ERR(data->echo_pin))
+		return dev_err_probe(&pdev->dev, PTR_ERR(data->echo_pin),
+				     "failed to request ECHO GPIO\n");
 
 	if (data->echo_pin) {
 		ret = of_property_read_u32(np,
-- 
2.30.2