linux-kernel - [PATCH 2/3] pinctrl: madera: Return ENOTSUPP for unsupported pin attributes

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Date:   Tue, 7 Aug 2018 10:32:25 +0100
From:   Richard Fitzgerald <rf@...nsource.cirrus.com>
To:     <linus.walleij@...aro.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>
Subject: [PATCH 2/3] pinctrl: madera: Return ENOTSUPP for unsupported pin attributes

The pin_config_[get|set] functions should return ENOTSUPP if
the requested attribute isn't supported.

Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
 drivers/pinctrl/cirrus/pinctrl-madera-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/cirrus/pinctrl-madera-core.c b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
index 4f9b7e3b7cf2..4ba56ca5a9be 100644
--- a/drivers/pinctrl/cirrus/pinctrl-madera-core.c
+++ b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
@@ -801,7 +801,7 @@ static int madera_pin_conf_get(struct pinctrl_dev *pctldev, unsigned int pin,
 			result = 1;
 		break;
 	default:
-		break;
+		return -ENOTSUPP;
 	}
 
 	*config = pinconf_to_config_packed(param, result);
@@ -905,7 +905,7 @@ static int madera_pin_conf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 			conf[1] &= ~MADERA_GP1_DIR;
 			break;
 		default:
-			break;
+			return -ENOTSUPP;
 		}
 
 		++configs;
-- 
2.11.0