From patchwork Wed Dec 5 09:42:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Levin X-Patchwork-Id: 10713699 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1E1E017DB for ; Wed, 5 Dec 2018 10:03:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0EFED2CD64 for ; Wed, 5 Dec 2018 10:03:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F0BAF2CD50; Wed, 5 Dec 2018 10:03:03 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,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 7EA4F2CD57 for ; Wed, 5 Dec 2018 10:03:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729364AbeLEJpQ (ORCPT ); Wed, 5 Dec 2018 04:45:16 -0500 Received: from mail.kernel.org ([198.145.29.99]:50064 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729030AbeLEJpP (ORCPT ); Wed, 5 Dec 2018 04:45:15 -0500 Received: from sasha-vm.mshome.net (unknown [213.57.143.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4561620878; Wed, 5 Dec 2018 09:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544003114; bh=ZcbJ5dPkQ6xoXmwv2Zckdj+dkFMHBSCqnf5czMQJ+2A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cu8EFG6TQ7W+HDL2mBWBSFot8NW67hMKtbKHxUMLRBwFIv5NyTwgErhHFuJLFjtyg TRgCx3dWkl/of1yiLstgbNeTXNaID9YROfz2gH8VWsjqw9GIqUTsChRJY4rw+fPBGW K3xX2VcBVDh+nu/mI6ubS5L9itWFWu4LgJvziaTk= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Aaro Koskinen , Felipe Balbi , Sasha Levin , linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 34/69] USB: omap_udc: use devm_request_irq() Date: Wed, 5 Dec 2018 04:42:12 -0500 Message-Id: <20181205094247.6556-34-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181205094247.6556-1-sashal@kernel.org> References: <20181205094247.6556-1-sashal@kernel.org> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Aaro Koskinen [ Upstream commit 286afdde1640d8ea8916a0f05e811441fbbf4b9d ] The current code fails to release the third irq on the error path (observed by reading the code), and we get also multiple WARNs with failing gadget drivers due to duplicate IRQ releases. Fix by using devm_request_irq(). Signed-off-by: Aaro Koskinen Signed-off-by: Felipe Balbi Signed-off-by: Sasha Levin --- drivers/usb/gadget/udc/omap_udc.c | 37 +++++++++---------------------- 1 file changed, 10 insertions(+), 27 deletions(-) diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c index f05ba6825bfe..e515c85ef0c5 100644 --- a/drivers/usb/gadget/udc/omap_udc.c +++ b/drivers/usb/gadget/udc/omap_udc.c @@ -2886,8 +2886,8 @@ static int omap_udc_probe(struct platform_device *pdev) udc->clr_halt = UDC_RESET_EP; /* USB general purpose IRQ: ep0, state changes, dma, etc */ - status = request_irq(pdev->resource[1].start, omap_udc_irq, - 0, driver_name, udc); + status = devm_request_irq(&pdev->dev, pdev->resource[1].start, + omap_udc_irq, 0, driver_name, udc); if (status != 0) { ERR("can't get irq %d, err %d\n", (int) pdev->resource[1].start, status); @@ -2895,20 +2895,20 @@ static int omap_udc_probe(struct platform_device *pdev) } /* USB "non-iso" IRQ (PIO for all but ep0) */ - status = request_irq(pdev->resource[2].start, omap_udc_pio_irq, - 0, "omap_udc pio", udc); + status = devm_request_irq(&pdev->dev, pdev->resource[2].start, + omap_udc_pio_irq, 0, "omap_udc pio", udc); if (status != 0) { ERR("can't get irq %d, err %d\n", (int) pdev->resource[2].start, status); - goto cleanup2; + goto cleanup1; } #ifdef USE_ISO - status = request_irq(pdev->resource[3].start, omap_udc_iso_irq, - 0, "omap_udc iso", udc); + status = devm_request_irq(&pdev->dev, pdev->resource[3].start, + omap_udc_iso_irq, 0, "omap_udc iso", udc); if (status != 0) { ERR("can't get irq %d, err %d\n", (int) pdev->resource[3].start, status); - goto cleanup3; + goto cleanup1; } #endif if (cpu_is_omap16xx() || cpu_is_omap7xx()) { @@ -2921,22 +2921,11 @@ static int omap_udc_probe(struct platform_device *pdev) create_proc_file(); status = usb_add_gadget_udc_release(&pdev->dev, &udc->gadget, omap_udc_release); - if (status) - goto cleanup4; - - return 0; + if (!status) + return 0; -cleanup4: remove_proc_file(); -#ifdef USE_ISO -cleanup3: - free_irq(pdev->resource[2].start, udc); -#endif - -cleanup2: - free_irq(pdev->resource[1].start, udc); - cleanup1: kfree(udc); udc = NULL; @@ -2980,12 +2969,6 @@ static int omap_udc_remove(struct platform_device *pdev) remove_proc_file(); -#ifdef USE_ISO - free_irq(pdev->resource[3].start, udc); -#endif - free_irq(pdev->resource[2].start, udc); - free_irq(pdev->resource[1].start, udc); - if (udc->dc_clk) { if (udc->clk_requested) omap_udc_enable_clock(0);