From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ale.deltatee.com ([207.54.116.67]:56517 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751242AbdCQSuZ (ORCPT ); Fri, 17 Mar 2017 14:50:25 -0400 From: Logan Gunthorpe To: Greg Kroah-Hartman , Dan Williams , Hans Verkuil , Alexander Viro , Alexandre Belloni , Jason Gunthorpe , Johannes Thumshirn , Dmitry Torokhov , Linus Walleij , Jarkko Sakkinen , "James E.J. Bottomley" , "Martin K. Petersen" , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Cyrille Pitchen Cc: linux-pci@vger.kernel.org, linux-scsi@vger.kernel.org, rtc-linux@googlegroups.com, linux-mtd@lists.infradead.org, linux-media@vger.kernel.org, linux-iio@vger.kernel.org, linux-rdma@vger.kernel.org, linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, linux-nvdimm@lists.01.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Logan Gunthorpe Date: Fri, 17 Mar 2017 12:48:12 -0600 Message-Id: <1489776503-3151-6-git-send-email-logang@deltatee.com> In-Reply-To: <1489776503-3151-1-git-send-email-logang@deltatee.com> References: <1489776503-3151-1-git-send-email-logang@deltatee.com> Subject: [PATCH v5 05/16] gpiolib: utilize new cdev_device_add helper function Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Replace the open coded registration of the cdev and dev with the new device_add_cdev() helper. The helper replaces a common pattern by taking the proper reference against the parent device and adding both the cdev and the device. Signed-off-by: Logan Gunthorpe Reviewed-by: Linus Walleij --- drivers/gpio/gpiolib.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 8b4d721..3ce2a27 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1035,18 +1035,14 @@ static int gpiochip_setup_dev(struct gpio_device *gdev) cdev_init(&gdev->chrdev, &gpio_fileops); gdev->chrdev.owner = THIS_MODULE; - gdev->chrdev.kobj.parent = &gdev->dev.kobj; gdev->dev.devt = MKDEV(MAJOR(gpio_devt), gdev->id); - status = cdev_add(&gdev->chrdev, gdev->dev.devt, 1); - if (status < 0) - chip_warn(gdev->chip, "failed to add char device %d:%d\n", - MAJOR(gpio_devt), gdev->id); - else - chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n", - MAJOR(gpio_devt), gdev->id); - status = device_add(&gdev->dev); + + status = cdev_device_add(&gdev->chrdev, &gdev->dev); if (status) - goto err_remove_chardev; + return status; + + chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n", + MAJOR(gpio_devt), gdev->id); status = gpiochip_sysfs_register(gdev); if (status) @@ -1061,9 +1057,7 @@ static int gpiochip_setup_dev(struct gpio_device *gdev) return 0; err_remove_device: - device_del(&gdev->dev); -err_remove_chardev: - cdev_del(&gdev->chrdev); + cdev_device_del(&gdev->chrdev, &gdev->dev); return status; } @@ -1347,8 +1341,7 @@ void gpiochip_remove(struct gpio_chip *chip) * be removed, else it will be dangling until the last user is * gone. */ - cdev_del(&gdev->chrdev); - device_del(&gdev->dev); + cdev_device_del(&gdev->chrdev, &gdev->dev); put_device(&gdev->dev); } EXPORT_SYMBOL_GPL(gpiochip_remove); -- 2.1.4