linux-kernel - [PATCHv3 07/14] pinctrl: mcp23s08: use managed kzalloc for mcp

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Date:   Mon, 15 May 2017 11:24:31 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Sebastian Reichel <sre@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Steven Miao <realmz6@...il.com>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Sylvain Lemieux <slemieux.tyco@...il.com>
Cc:     Enric Balletbo i Serra <enric.balletbo@...labora.co.uk>,
        linux-gpio@...r.kernel.org,
        adi-buildroot-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>
Subject: [PATCHv3 07/14] pinctrl: mcp23s08: use managed kzalloc for mcp

Let's remove a few lines of code by using managed memory for mcp
variable.

Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
---
 drivers/pinctrl/pinctrl-mcp23s08.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c
index 94d2c19a6989..4d2e1c3c0e87 100644
--- a/drivers/pinctrl/pinctrl-mcp23s08.c
+++ b/drivers/pinctrl/pinctrl-mcp23s08.c
@@ -1019,7 +1019,7 @@ static int mcp230xx_probe(struct i2c_client *client,
 		}
 	}
 
-	mcp = kzalloc(sizeof(*mcp), GFP_KERNEL);
+	mcp = devm_kzalloc(&client->dev, sizeof(*mcp), GFP_KERNEL);
 	if (!mcp)
 		return -ENOMEM;
 
@@ -1027,16 +1027,11 @@ static int mcp230xx_probe(struct i2c_client *client,
 	status = mcp23s08_probe_one(mcp, &client->dev, client, client->addr,
 				    id->driver_data, pdata, 0);
 	if (status)
-		goto fail;
+		return status;
 
 	i2c_set_clientdata(client, mcp);
 
 	return 0;
-
-fail:
-	kfree(mcp);
-
-	return status;
 }
 
 static int mcp230xx_remove(struct i2c_client *client)
@@ -1044,7 +1039,6 @@ static int mcp230xx_remove(struct i2c_client *client)
 	struct mcp23s08 *mcp = i2c_get_clientdata(client);
 
 	gpiochip_remove(&mcp->chip);
-	kfree(mcp);
 
 	return 0;
 }
-- 
2.11.0