Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935147AbcKNRP5 (ORCPT ); Mon, 14 Nov 2016 12:15:57 -0500 Received: from mx0b-001ae601.pphosted.com ([67.231.152.168]:60458 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934472AbcKNRPy (ORCPT ); Mon, 14 Nov 2016 12:15:54 -0500 Authentication-Results: ppops.net; spf=none smtp.mailfrom=ckeepax@opensource.wolfsonmicro.com From: Charles Keepax To: CC: , Subject: [PATCH v2 1/3] mfd: arizona: Correctly clean up after IRQs Date: Mon, 14 Nov 2016 17:15:55 +0000 Message-ID: <1479143757-30531-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> X-Mailer: git-send-email 2.1.4 MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609300000 definitions=main-1611140347 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3353 Lines: 117 Currently we leak a lot of things when tearing down the IRQs this patch fixes this cleaning up both the IRQ mappings and the IRQ domain itself. Signed-off-by: Charles Keepax --- Changes since v1: - Correct handling of ret and error messages from irq_create_mapping Thanks, Charles drivers/mfd/arizona-irq.c | 54 +++++++++++++++++++++++++++++++++++------------ 1 file changed, 40 insertions(+), 14 deletions(-) diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index 2e01975..bc3b342 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -207,6 +207,7 @@ int arizona_irq_init(struct arizona *arizona) int ret, i; const struct regmap_irq_chip *aod, *irq; struct irq_data *irq_data; + unsigned int virq; arizona->ctrlif_error = true; @@ -318,24 +319,34 @@ int arizona_irq_init(struct arizona *arizona) } if (aod) { - ret = regmap_add_irq_chip(arizona->regmap, - irq_create_mapping(arizona->virq, 0), - IRQF_ONESHOT, 0, aod, - &arizona->aod_irq_chip); + virq = irq_create_mapping(arizona->virq, 0); + if (!virq) { + dev_err(arizona->dev, "Failed to map AOD IRQs\n"); + ret = -EINVAL; + goto err_domain; + } + + ret = regmap_add_irq_chip(arizona->regmap, virq, IRQF_ONESHOT, + 0, aod, &arizona->aod_irq_chip); if (ret != 0) { dev_err(arizona->dev, "Failed to add AOD IRQs: %d\n", ret); - goto err; + goto err_map_aod; } } - ret = regmap_add_irq_chip(arizona->regmap, - irq_create_mapping(arizona->virq, 1), - IRQF_ONESHOT, 0, irq, - &arizona->irq_chip); + virq = irq_create_mapping(arizona->virq, 1); + if (!virq) { + dev_err(arizona->dev, "Failed to map main IRQs\n"); + ret = -EINVAL; + goto err_aod; + } + + ret = regmap_add_irq_chip(arizona->regmap, virq, IRQF_ONESHOT, + 0, irq, &arizona->irq_chip); if (ret != 0) { dev_err(arizona->dev, "Failed to add main IRQs: %d\n", ret); - goto err_aod; + goto err_map_main_irq; } /* Used to emulate edge trigger and to work around broken pinmux */ @@ -400,23 +411,38 @@ int arizona_irq_init(struct arizona *arizona) err_main_irq: regmap_del_irq_chip(irq_find_mapping(arizona->virq, 1), arizona->irq_chip); +err_map_main_irq: + irq_dispose_mapping(irq_find_mapping(arizona->virq, 1)); err_aod: regmap_del_irq_chip(irq_find_mapping(arizona->virq, 0), arizona->aod_irq_chip); +err_map_aod: + irq_dispose_mapping(irq_find_mapping(arizona->virq, 0)); +err_domain: + irq_domain_remove(arizona->virq); err: return ret; } int arizona_irq_exit(struct arizona *arizona) { + unsigned int virq; + if (arizona->ctrlif_error) free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR), arizona); free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona); - regmap_del_irq_chip(irq_find_mapping(arizona->virq, 1), - arizona->irq_chip); - regmap_del_irq_chip(irq_find_mapping(arizona->virq, 0), - arizona->aod_irq_chip); + + virq = irq_find_mapping(arizona->virq, 1); + regmap_del_irq_chip(virq, arizona->irq_chip); + irq_dispose_mapping(virq); + + virq = irq_find_mapping(arizona->virq, 0); + regmap_del_irq_chip(virq, arizona->aod_irq_chip); + irq_dispose_mapping(virq); + + irq_domain_remove(arizona->virq); + free_irq(arizona->irq, arizona); return 0; -- 2.1.4