From patchwork Fri Oct 30 15:50:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Qilong X-Patchwork-Id: 11870133 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D766414C0 for ; Fri, 30 Oct 2020 15:40:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C149D20791 for ; Fri, 30 Oct 2020 15:40:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726703AbgJ3PkA (ORCPT ); Fri, 30 Oct 2020 11:40:00 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:7117 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726319AbgJ3Pj7 (ORCPT ); Fri, 30 Oct 2020 11:39:59 -0400 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4CN61Y6SsFzLpcY; Fri, 30 Oct 2020 23:39:29 +0800 (CST) Received: from huawei.com (10.90.53.225) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.487.0; Fri, 30 Oct 2020 23:39:27 +0800 From: Zhang Qilong To: , CC: Subject: [PATCH] xhci: hisilicon: fix refercence leak in xhci_histb_probe Date: Fri, 30 Oct 2020 23:50:12 +0800 Message-ID: <20201030155012.100668-1-zhangqilong3@huawei.com> X-Mailer: git-send-email 2.26.0.106.g9fadedd MIME-Version: 1.0 X-Originating-IP: [10.90.53.225] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org pm_runtime_get_sync() will increment pm usage counter. Forgetting to call put operation in error path will result in reference leak in xhci_histb_probe, so we should fix it. Signed-off-by: Zhang Qilong --- drivers/usb/host/xhci-histb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-histb.c b/drivers/usb/host/xhci-histb.c index 5546e7e013a8..08369857686e 100644 --- a/drivers/usb/host/xhci-histb.c +++ b/drivers/usb/host/xhci-histb.c @@ -240,7 +240,7 @@ static int xhci_histb_probe(struct platform_device *pdev) /* Initialize dma_mask and coherent_dma_mask to 32-bits */ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); if (ret) - return ret; + goto disable_pm; hcd = usb_create_hcd(driver, dev, dev_name(dev)); if (!hcd) {