From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6E422CAC5A5 for ; Wed, 24 Sep 2025 09:45:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=my6H6lYbT/FQC+oIyyH8G6zpCvW5PIHEnjCe8CCE4Lo=; b=RCFA+D/IdtMb0qEoq2xPcv4ynl 6pL9rdtu6xFJDppTl5cJ2iz8MuG0VffZNNXqe/NiDlNHQjsfPqGx556By5PEbZ5jxg0OUlgd0aLJw llWnTn3QVKtp14glaAsstPkAJ4+jfwWCDvb+JIBVc9+GnInOnVwhLQ+7D8LgYhdtr4Nl61DC2bxzb FCJVLn2zDpPK1TVuqmOLqhE+0G2aSBsqM//L5NuFxt2XwKQGbxx0o1upaTQTK6ihjBPLsoWC/CcOn 0zRam0JY9VEyW5dH00bAfMzR9h+PJhEDuKv5ug2wBQ0ka3YrMsLcgkpHHCm/agikxC1M3AEKqGcrZ J9HO3wxQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v1M4C-0000000GAmv-1A2L; Wed, 24 Sep 2025 09:45:40 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v1M48-0000000GAhu-3fDX for linux-mediatek@lists.infradead.org; Wed, 24 Sep 2025 09:45:38 +0000 X-UUID: 3757e4bc992b11f09f706fa2197c6ceb-20250924 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=my6H6lYbT/FQC+oIyyH8G6zpCvW5PIHEnjCe8CCE4Lo=; b=BSZ9rF6HPBkO741Y9kx0eBYGMaeuXoqEBrlHAQjdu40espky0UJI7XUAhHbo2X0qD70cYnN6dUGJ9yEIcINtSecxVKw7ua9xBTDHG5Yp3bc7IjpP2wx7JUUBUYUZHIji9wmdc5BivJlArPas+pF3c1t/Q0en7K3qR13p629DgDM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.4,REQID:d0f15224-d944-4411-91a5-2252be97c8c3,IP:0,UR L:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:-5 X-CID-META: VersionHash:1ca6b93,CLOUDID:bbdca3f8-ebfe-43c9-88c9-80cb93f22ca4,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102|836|888|898,TC:-5,Content: 0|15|50,EDM:-3,IP:nil,URL:0,File:130,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0, OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 3,DMD|SSN|SDN X-CID-BAS: 3,DMD|SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 3757e4bc992b11f09f706fa2197c6ceb-20250924 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 686901235; Wed, 24 Sep 2025 02:45:33 -0700 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by MTKMBS09N2.mediatek.inc (172.21.101.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.10; Wed, 24 Sep 2025 17:45:29 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1748.10 via Frontend Transport; Wed, 24 Sep 2025 17:45:29 +0800 From: To: , CC: , , , , , , , , , , , , , , , Subject: [PATCH v2 5/8] ufs: host: mediatek: Fix shutdown/suspend race condition Date: Wed, 24 Sep 2025 17:43:27 +0800 Message-ID: <20250924094527.2992256-6-peter.wang@mediatek.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250924094527.2992256-1-peter.wang@mediatek.com> References: <20250924094527.2992256-1-peter.wang@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250924_024536_926108_46BEDA5D X-CRM114-Status: GOOD ( 10.78 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Peter Wang Address a race condition between shutdown and suspend operations in the UFS Mediatek driver. Before entering suspend, check if a shutdown is in progress to prevent conflicts and ensure system stability. Signed-off-by: Peter Wang --- drivers/ufs/host/ufs-mediatek.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 2a69b4cede22..c00e62adbbda 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -2425,6 +2425,11 @@ static int ufs_mtk_system_suspend(struct device *dev) struct arm_smccc_res res; int ret; + if (hba->shutting_down) { + ret = -EBUSY; + goto out; + } + ret = ufshcd_system_suspend(dev); if (ret) goto out; -- 2.45.2