From patchwork Wed Feb 1 16:53:54 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christopher Bostic X-Patchwork-Id: 9550225 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5CBD360424 for ; Wed, 1 Feb 2017 17:07:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4C99128450 for ; Wed, 1 Feb 2017 17:07:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 416E12845B; Wed, 1 Feb 2017 17:07:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00 autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 07C0128450 for ; Wed, 1 Feb 2017 17:07:59 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cYyNy-0006a3-OH; Wed, 01 Feb 2017 17:07:58 +0000 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cYyDN-0000UH-Du for linux-arm-kernel@lists.infradead.org; Wed, 01 Feb 2017 16:57:04 +0000 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v11Gs9bk139826 for ; Wed, 1 Feb 2017 11:56:45 -0500 Received: from e17.ny.us.ibm.com (e17.ny.us.ibm.com [129.33.205.207]) by mx0a-001b2d01.pphosted.com with ESMTP id 28bhcuxpj8-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 01 Feb 2017 11:56:45 -0500 Received: from localhost by e17.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 1 Feb 2017 11:56:40 -0500 Received: from b01cxnp22036.gho.pok.ibm.com (b01cxnp22036.gho.pok.ibm.com [9.57.198.26]) by d01dlp02.pok.ibm.com (Postfix) with ESMTP id 666846E801D; Wed, 1 Feb 2017 11:56:12 -0500 (EST) Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp22036.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v11GueF047579258; Wed, 1 Feb 2017 16:56:40 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 40BC412403F; Wed, 1 Feb 2017 11:56:40 -0500 (EST) Received: from Christophers-MacBook-Pro.local.com (unknown [9.81.201.28]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id 99DCE124035; Wed, 1 Feb 2017 11:56:31 -0500 (EST) From: Christopher Bostic To: robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk, gregkh@linuxfoundation.org, mturquette@baylibre.com, geert+renesas@glider.be, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, joel@jms.id.au, linux-kernel@vger.kernel.org, andrew@aj.id.au, alistair@popple.id.au, benh@kernel.crashing.org Subject: [PATCH v3 14/18] drivers/fsi: Remove all scanned devices during master unregister Date: Wed, 1 Feb 2017 10:53:54 -0600 X-Mailer: git-send-email 2.10.1 (Apple Git-78) In-Reply-To: <20170201165358.45415-1-cbostic@linux.vnet.ibm.com> References: <20170201165358.45415-1-cbostic@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17020116-0040-0000-0000-000002852EE6 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00006537; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000201; SDB=6.00815769; UDB=6.00398295; IPR=6.00593211; BA=6.00005108; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00014138; XFM=3.00000011; UTC=2017-02-01 16:56:44 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17020116-0041-0000-0000-00000678385A Message-Id: <20170201165358.45415-15-cbostic@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-01_13:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1702010167 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170201_085701_672208_C61386E2 X-CRM114-Status: UNSURE ( 8.18 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chris Bostic MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Chris Bostic Master will remove all previously scanned devices during an unregister operation. This will be necessary should any master attempt to register more than once. Signed-off-by: Chris Bostic --- drivers/fsi/fsi-core.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index af7965f..28b82d1 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -428,12 +428,26 @@ int fsi_master_register(struct fsi_master *master) } EXPORT_SYMBOL_GPL(fsi_master_register); +static int fsi_slave_device_remove(struct device *dev, void *data) +{ + put_device(dev); + return 0; +} + +static int fsi_master_slave_remove(struct device *dev, void *data) +{ + device_for_each_child(dev, NULL, fsi_slave_device_remove); + device_unregister(dev); + return 0; +} + void fsi_master_unregister(struct fsi_master *master) { if (!master || !master->dev) return; ida_simple_remove(&master_ida, master->idx); + device_for_each_child(master->dev, NULL, fsi_master_slave_remove); put_device(master->dev); } EXPORT_SYMBOL_GPL(fsi_master_unregister);