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 X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AFD5BC4338F for ; Fri, 13 Aug 2021 15:10:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99087604D7 for ; Fri, 13 Aug 2021 15:10:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241895AbhHMPLV (ORCPT ); Fri, 13 Aug 2021 11:11:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:54086 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241738AbhHMPKi (ORCPT ); Fri, 13 Aug 2021 11:10:38 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7982F61131; Fri, 13 Aug 2021 15:10:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1628867412; bh=0HwXxBgV4lUjdQgqjR5GL8H3n+p5DveIEMlAlZRdATc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QEIk69dxinuChl+hmmZ4NPv/I7VH8lLpOYfhJScJ4lSwRRI4NWYlhrZV6WUWXlreV WI5bsyx7jh3kBC33VMNgdBcZaWMc9CJWXyMQW30llihaupALILQX1ZB4+3EuSVjUk4 dtnCDp1a9e6Yia+EAGkahoyaaoYYqiWIpCe9Sn2Q= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Letu Ren , "David S. Miller" , Sasha Levin Subject: [PATCH 4.9 26/30] net/qla3xxx: fix schedule while atomic in ql_wait_for_drvr_lock and ql_adapter_reset Date: Fri, 13 Aug 2021 17:06:54 +0200 Message-Id: <20210813150523.293477392@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210813150522.445553924@linuxfoundation.org> References: <20210813150522.445553924@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Letu Ren [ Upstream commit 92766c4628ea349c8ddab0cd7bd0488f36e5c4ce ] When calling the 'ql_wait_for_drvr_lock' and 'ql_adapter_reset', the driver has already acquired the spin lock, so the driver should not call 'ssleep' in atomic context. This bug can be fixed by using 'mdelay' instead of 'ssleep'. Reported-by: Letu Ren Signed-off-by: Letu Ren Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/qlogic/qla3xxx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/net/ethernet/qlogic/qla3xxx.c +++ b/drivers/net/ethernet/qlogic/qla3xxx.c @@ -155,7 +155,7 @@ static int ql_wait_for_drvr_lock(struct "driver lock acquired\n"); return 1; } - ssleep(1); + mdelay(1000); } while (++i < 10); netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n"); @@ -3287,7 +3287,7 @@ static int ql_adapter_reset(struct ql3_a if ((value & ISP_CONTROL_SR) == 0) break; - ssleep(1); + mdelay(1000); } while ((--max_wait_time)); /* @@ -3323,7 +3323,7 @@ static int ql_adapter_reset(struct ql3_a ispControlStatus); if ((value & ISP_CONTROL_FSR) == 0) break; - ssleep(1); + mdelay(1000); } while ((--max_wait_time)); } if (max_wait_time == 0)