From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750923AbdAXU0v (ORCPT ); Tue, 24 Jan 2017 15:26:51 -0500 Received: from mail-yw0-f196.google.com ([209.85.161.196]:34501 "EHLO mail-yw0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750787AbdAXU0u (ORCPT ); Tue, 24 Jan 2017 15:26:50 -0500 From: William Breathitt Gray To: jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, William Breathitt Gray Subject: [PATCH] iio: stx104: Utilize devm_ functions in driver probe callback Date: Tue, 24 Jan 2017 15:26:17 -0500 Message-Id: <20170124202617.15512-1-vilhelm.gray@gmail.com> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The devm_ resource manager functions allow memory to be automatically released when a device is unbound. This patch takes advantage of the resource manager functions and replaces the gpiochip_add_data call and iio_device_register call with the devm_gpiochip_add_data call and devm_iio_device_register call respectively. In addition, the stx104_remove function has been removed as no longer necessary due to the use of the relevant devm_ resource manager functions. Signed-off-by: William Breathitt Gray --- drivers/iio/adc/stx104.c | 22 ++-------------------- 1 file changed, 2 insertions(+), 20 deletions(-) diff --git a/drivers/iio/adc/stx104.c b/drivers/iio/adc/stx104.c index 7e3645749eaf..c56ff286695d 100644 --- a/drivers/iio/adc/stx104.c +++ b/drivers/iio/adc/stx104.c @@ -339,30 +339,13 @@ static int stx104_probe(struct device *dev, unsigned int id) stx104dev->chip = &stx104gpio->chip; dev_set_drvdata(dev, stx104dev); - err = gpiochip_add_data(&stx104gpio->chip, stx104gpio); + err = devm_gpiochip_add_data(dev, &stx104gpio->chip, stx104gpio); if (err) { dev_err(dev, "GPIO registering failed (%d)\n", err); return err; } - err = iio_device_register(indio_dev); - if (err) { - dev_err(dev, "IIO device registering failed (%d)\n", err); - gpiochip_remove(&stx104gpio->chip); - return err; - } - - return 0; -} - -static int stx104_remove(struct device *dev, unsigned int id) -{ - struct stx104_dev *const stx104dev = dev_get_drvdata(dev); - - iio_device_unregister(stx104dev->indio_dev); - gpiochip_remove(stx104dev->chip); - - return 0; + return devm_iio_device_register(dev, indio_dev); } static struct isa_driver stx104_driver = { @@ -370,7 +353,6 @@ static struct isa_driver stx104_driver = { .driver = { .name = "stx104" }, - .remove = stx104_remove }; module_isa_driver(stx104_driver, num_stx104); -- 2.11.0