From patchwork Mon Nov 13 04:41:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Su Hui X-Patchwork-Id: 744439 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 214ABC41535 for ; Mon, 13 Nov 2023 04:41:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230096AbjKMElx (ORCPT ); Sun, 12 Nov 2023 23:41:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229607AbjKMElw (ORCPT ); Sun, 12 Nov 2023 23:41:52 -0500 Received: from mail.nfschina.com (unknown [42.101.60.195]) by lindbergh.monkeyblade.net (Postfix) with SMTP id 5A10CFA; Sun, 12 Nov 2023 20:41:47 -0800 (PST) Received: from localhost.localdomain (unknown [180.167.10.98]) by mail.nfschina.com (Maildata Gateway V2.8.8) with ESMTPA id 4C935604A87FE; Mon, 13 Nov 2023 12:41:31 +0800 (CST) X-MD-Sfrom: suhui@nfschina.com X-MD-SrcIP: 180.167.10.98 From: Su Hui To: kvalo@kernel.org Cc: Su Hui , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH wireless-next] wlcore: debugfs: add an error code check in beacon_filtering_write Date: Mon, 13 Nov 2023 12:41:14 +0800 Message-Id: <20231113044113.74732-1-suhui@nfschina.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org wl1271_acx_beacon_filter_opt() return error code if failed, add a check for this is better and safer. Signed-off-by: Su Hui --- drivers/net/wireless/ti/wlcore/debugfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c index eb3d3f0e0b4d..d4071291a8cd 100644 --- a/drivers/net/wireless/ti/wlcore/debugfs.c +++ b/drivers/net/wireless/ti/wlcore/debugfs.c @@ -932,13 +932,15 @@ static ssize_t beacon_filtering_write(struct file *file, wl12xx_for_each_wlvif(wl, wlvif) { ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); + if (ret < 0) + break; } pm_runtime_mark_last_busy(wl->dev); pm_runtime_put_autosuspend(wl->dev); out: mutex_unlock(&wl->mutex); - return count; + return ret < 0 ? ret : count; } static const struct file_operations beacon_filtering_ops = {