linux-kernel - [PATCH] Input: gpio-keys - filter gpio_keys -EPROBE

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Date: Fri, 29 Dec 2023 09:36:57 +0800
From: Hermes Zhang <Hermes.Zhang@...s.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
CC: <kernel@...s.com>, Hermes Zhang <chenhuiz@...s.com>,
	<linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] Input: gpio-keys - filter gpio_keys -EPROBE_DEFER error messages

From: Hermes Zhang <chenhuiz@...s.com>

commit ae42f9288846 ("gpio: Return EPROBE_DEFER if gc->to_irq is NULL")
make gpiod_to_irq() possible to return -EPROBE_DEFER when the racing
happens. This causes the following error message to be printed:

    gpio-keys gpio_keys: Unable to get irq number for GPIO 0, error -517

Fix that by changing dev_err() to dev_err_probe()

Signed-off-by: Hermes Zhang <chenhuiz@...s.com>
---
 drivers/input/keyboard/gpio_keys.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 2e7c2c046e67..193856599669 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -581,9 +581,9 @@ static int gpio_keys_setup_key(struct platform_device *pdev,
 			irq = gpiod_to_irq(bdata->gpiod);
 			if (irq < 0) {
 				error = irq;
-				dev_err(dev,
-					"Unable to get irq number for GPIO %d, error %d\n",
-					button->gpio, error);
+				dev_err_probe(dev, error,
+					      "Unable to get irq number for GPIO %d\n",
+					      button->gpio);
 				return error;
 			}
 			bdata->irq = irq;
-- 
2.39.2