From patchwork Tue Dec 24 03:51:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Leizhen (ThunderTown)" X-Patchwork-Id: 11309025 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 6B5F814E3 for ; Tue, 24 Dec 2019 03:52:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 53F49206D3 for ; Tue, 24 Dec 2019 03:52:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726866AbfLXDw4 (ORCPT ); Mon, 23 Dec 2019 22:52:56 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:7737 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726747AbfLXDw4 (ORCPT ); Mon, 23 Dec 2019 22:52:56 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 99CE0BD3E0E93DEBEFC4; Tue, 24 Dec 2019 11:52:54 +0800 (CST) Received: from HGHY4L002753561.china.huawei.com (10.133.215.186) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.439.0; Tue, 24 Dec 2019 11:52:45 +0800 From: Zhen Lei To: Jiri Kosina , Benjamin Tissoires , linux-usb , linux-input CC: Zhen Lei , Hillf Danton Subject: [PATCH 1/1] HID: hiddev: remove a duplicated check Date: Tue, 24 Dec 2019 11:51:17 +0800 Message-ID: <20191224035117.98816-1-thunder.leizhen@huawei.com> X-Mailer: git-send-email 2.21.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.133.215.186] X-CFilter-Loop: Reflected Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org After commit 9c09b214f30e ("HID: hiddev: avoid opening a disconnected device"), the original check "list->hiddev->exist" become unnecessary. Signed-off-by: Zhen Lei --- drivers/hid/usbhid/hiddev.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index e421cdf2d1a4ec5..e04cf95fca094a8 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c @@ -292,16 +292,16 @@ static int hiddev_open(struct inode *inode, struct file *file) res = -ENODEV; goto bail_unlock; } - if (!list->hiddev->open++) - if (list->hiddev->exist) { - struct hid_device *hid = hiddev->hid; - res = hid_hw_power(hid, PM_HINT_FULLON); - if (res < 0) - goto bail_unlock; - res = hid_hw_open(hid); - if (res < 0) - goto bail_normal_power; - } + if (!list->hiddev->open++) { + struct hid_device *hid = hiddev->hid; + + res = hid_hw_power(hid, PM_HINT_FULLON); + if (res < 0) + goto bail_unlock; + res = hid_hw_open(hid); + if (res < 0) + goto bail_normal_power; + } mutex_unlock(&hiddev->existancelock); return 0; bail_normal_power: