From patchwork Tue Jul 18 08:19:40 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Phil Reid X-Patchwork-Id: 9847223 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 A3104603B4 for ; Tue, 18 Jul 2017 08:20:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 950D723B23 for ; Tue, 18 Jul 2017 08:20:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 89FE827E63; Tue, 18 Jul 2017 08:20:19 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8453F27F92 for ; Tue, 18 Jul 2017 08:20:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751405AbdGRIUE (ORCPT ); Tue, 18 Jul 2017 04:20:04 -0400 Received: from anchovy3.45ru.net.au ([203.30.46.155]:36474 "EHLO anchovy.45ru.net.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751422AbdGRIT5 (ORCPT ); Tue, 18 Jul 2017 04:19:57 -0400 Received: (qmail 4395 invoked by uid 5089); 18 Jul 2017 08:19:55 -0000 Received: by simscan 1.2.0 ppid: 4277, pid: 4280, t: 0.0199s scanners: regex: 1.2.0 attach: 1.2.0 clamav: 0.88.3/m:40/d:1950 X-RBL: $rbltext Received: from unknown (HELO preid-centos7.electromag.com.au) (preid@electromag.com.au@203.59.230.133) by anchovy2.45ru.net.au with ESMTPA; 18 Jul 2017 08:19:55 -0000 Received: by preid-centos7.electromag.com.au (Postfix, from userid 1000) id EE4183037625C; Tue, 18 Jul 2017 16:19:49 +0800 (AWST) From: Phil Reid To: wsa@the-dreams.de, robh+dt@kernel.org, mark.rutland@arm.com, sre@kernel.org, jdelvare@suse.com, jglauber@cavium.com, david.daney@cavium.com, peda@axentia.se, benjamin.tissoires@redhat.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org Cc: Phil Reid Subject: [PATCH v8 5/9] i2c: mux: pca954x: Return error if irq_create_mapping fails Date: Tue, 18 Jul 2017 16:19:40 +0800 Message-Id: <1500365984-61404-6-git-send-email-preid@electromag.com.au> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1500365984-61404-1-git-send-email-preid@electromag.com.au> References: <1500365984-61404-1-git-send-email-preid@electromag.com.au> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP irq_create_mapping can return an error, report error to log and return. Cleanup will occur inprobe function when an error is returned. Suggested-by: Peter Rosin Signed-off-by: Phil Reid Acked-by: Peter Rosin --- drivers/i2c/muxes/i2c-mux-pca954x.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c index 9867720..0594775 100644 --- a/drivers/i2c/muxes/i2c-mux-pca954x.c +++ b/drivers/i2c/muxes/i2c-mux-pca954x.c @@ -309,6 +309,10 @@ static int pca954x_irq_setup(struct i2c_mux_core *muxc) for (c = 0; c < data->chip->nchans; c++) { irq = irq_create_mapping(data->irq, c); + if (irq <= 0) { + dev_err(&client->dev, "failed irq create map\n"); + return -EINVAL; + } irq_set_chip_data(irq, data); irq_set_chip_and_handler(irq, &pca954x_irq_chip, handle_simple_irq);