From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ale.deltatee.com (ale.deltatee.com [207.54.116.67]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id AB81A8210A for ; Sat, 25 Feb 2017 22:40:21 -0800 (PST) From: Logan Gunthorpe Date: Sat, 25 Feb 2017 23:38:07 -0700 Message-Id: <1488091097-12328-7-git-send-email-logang@deltatee.com> In-Reply-To: <1488091097-12328-1-git-send-email-logang@deltatee.com> References: <1488091097-12328-1-git-send-email-logang@deltatee.com> Subject: [PATCH v2 06/16] tpm-chip: utilize new cdev_device_add helper function List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" To: Greg Kroah-Hartman , Dan Williams , Alexander Viro , Johannes Thumshirn , Jan Kara , Arnd Bergmann , Sajjan Vikas C , Dmitry Torokhov , Linus Walleij , Alexandre Courbot , Peter Huewe , Marcel Selhorst , Jarkko Sakkinen , Jason Gunthorpe , Olof Johansson , Doug Ledford , Sean Hefty , Hal Rosenstock , Dmitry Vyukov , Haggai Eran , Parav Pandit , Leon Romanovsky , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Hans Verkuil , Mauro Carvalho Chehab , Artem Bityutskiy , Richard Weinberger , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Cyrille Pitchen , Matt Porter , Alexandre Bounine , Andrew Morton , Joe Perches , Lorenzo Stoakes , Vladimir Zapolskiy , Alessandro Zummo , Alexandre Belloni , Boaz Harrosh , "James E.J. Bottomley" , "Martin K. Petersen" , Stephen Bates , Bjorn Helgaas Cc: linux-scsi@vger.kernel.org, rtc-linux@googlegroups.com, linux-gpio@vger.kernel.org, linux-iio@vger.kernel.org, linux-pci@vger.kernel.org, linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-mtd@lists.infradead.org, linux-input@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-media@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 --- drivers/char/tpm/tpm-chip.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c index a77262d..933f96e 100644 --- a/drivers/char/tpm/tpm-chip.c +++ b/drivers/char/tpm/tpm-chip.c @@ -187,7 +187,6 @@ struct tpm_chip *tpm_chip_alloc(struct device *dev, cdev_init(&chip->cdev, &tpm_fops); chip->cdev.owner = THIS_MODULE; - chip->cdev.kobj.parent = &chip->dev.kobj; return chip; @@ -230,27 +229,16 @@ static int tpm_add_char_device(struct tpm_chip *chip) { int rc; - rc = cdev_add(&chip->cdev, chip->dev.devt, 1); + rc = cdev_device_add(&chip->cdev, &chip->dev); if (rc) { dev_err(&chip->dev, - "unable to cdev_add() %s, major %d, minor %d, err=%d\n", + "unable to cdev_device_add() %s, major %d, minor %d, err=%d\n", dev_name(&chip->dev), MAJOR(chip->dev.devt), MINOR(chip->dev.devt), rc); return rc; } - rc = device_add(&chip->dev); - if (rc) { - dev_err(&chip->dev, - "unable to device_register() %s, major %d, minor %d, err=%d\n", - dev_name(&chip->dev), MAJOR(chip->dev.devt), - MINOR(chip->dev.devt), rc); - - cdev_del(&chip->cdev); - return rc; - } - /* Make the chip available. */ mutex_lock(&idr_lock); idr_replace(&dev_nums_idr, chip, chip->dev_num); @@ -261,8 +249,7 @@ static int tpm_add_char_device(struct tpm_chip *chip) static void tpm_del_char_device(struct tpm_chip *chip) { - cdev_del(&chip->cdev); - device_del(&chip->dev); + cdev_device_del(&chip->cdev, &chip->dev); /* Make the chip unavailable. */ mutex_lock(&idr_lock); -- 2.1.4 _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm