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Groups > linux.kernel > #1641472

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

From Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Newsgroups linux.kernel
Subject [PATCHv3 07/14] pinctrl: mcp23s08: use managed kzalloc for mcp
Date 2017-05-15 11:30 +0200
Message-ID <tHkuf-6eH-31@gated-at.bofh.it> (permalink)
References <tHkud-6eH-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.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

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Thread

[PATCHv3 00/14] mcp23s08 pinconf & cleanup Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 09/14] pinctrl: mcp23s08: simplify i2c pdata handling Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 13/14] pinctrl: mcp23s08: drop comment about missing irq support Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 03/14] pinctrl: mcp23s08: drop pullup config from pdata Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 07/14] pinctrl: mcp23s08: use managed kzalloc for mcp Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 12/14] pinctrl: mcp23s08: simplify spi_present_mask handling Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 08/14] pinctrl: mcp23s08: switch to devm_gpiochip_add_data Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 10/14] pinctrl: mcp23s08: simplify spi pdata handling Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 02/14] pinctrl: mcp23s08: add pinconf support Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
    Re: [PATCHv3 02/14] pinctrl: mcp23s08: add pinconf support Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 14:40 +0200
  [PATCHv3 05/14] pinctrl: mcp23s08: drop OF_GPIO dependency Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  [PATCHv3 01/14] gpio: mcp23s08: move to pinctrl Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
    Re: [PATCHv3 01/14] gpio: mcp23s08: move to pinctrl Sylvain Lemieux <slemieux.tyco@gmail.com> - 2017-05-16 21:50 +0200
  [PATCHv3 11/14] pinctrl: mcp23s08: generalize irq property handling Sebastian Reichel <sebastian.reichel@collabora.co.uk> - 2017-05-15 11:30 +0200
  Re: [PATCHv3 00/14] mcp23s08 pinconf & cleanup Linus Walleij <linus.walleij@linaro.org> - 2017-05-23 10:00 +0200

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