From patchwork Sat Nov 21 02:33:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Karan Tilak Kumar \(kartilak\)" X-Patchwork-Id: 330201 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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, 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, USER_IN_DEF_DKIM_WL 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 5A499C64E69 for ; Sat, 21 Nov 2020 02:34:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2226822403 for ; Sat, 21 Nov 2020 02:34:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=cisco.com header.i=@cisco.com header.b="NBhm/llc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725989AbgKUCd5 (ORCPT ); Fri, 20 Nov 2020 21:33:57 -0500 Received: from alln-iport-8.cisco.com ([173.37.142.95]:17934 "EHLO alln-iport-8.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725785AbgKUCd4 (ORCPT ); Fri, 20 Nov 2020 21:33:56 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1549; q=dns/txt; s=iport; t=1605926035; x=1607135635; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Qrdrfc85GgzgnaPExtbGJgoy0KSfHxDba/cz8fzEu38=; b=NBhm/llcduG7e2aYCXda2xtJGX1B0ZLGfLF+1gtHBuMAoL5RfryE+4HM 3300wVlKyV8ki5ZyrJTWRbk7h35OZlZBv1zJSuufT4TRtwXH51pQa/8D2 wU0tXPcn+pNWk4p/4o7wIFE700gKPuv0DJXrE7eS1XmEQzDIS7r4QbJ4T Q=; X-IronPort-AV: E=Sophos;i="5.78,358,1599523200"; d="scan'208";a="614725737" Received: from alln-core-8.cisco.com ([173.36.13.141]) by alln-iport-8.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 21 Nov 2020 02:33:55 +0000 Received: from localhost.cisco.com ([10.193.101.253]) (authenticated bits=0) by alln-core-8.cisco.com (8.15.2/8.15.2) with ESMTPSA id 0AL2Xlw6010143 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sat, 21 Nov 2020 02:33:54 GMT From: Karan Tilak Kumar To: satishkh@cisco.com Cc: sebaddel@cisco.com, arulponn@cisco.com, jejb@linux.ibm.com, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Karan Tilak Kumar Subject: [PATCH] scsi: fnic: Validate io_req before others Date: Fri, 20 Nov 2020 18:33:37 -0800 Message-Id: <20201121023337.19295-1-kartilak@cisco.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 X-Authenticated-User: kartilak@cisco.com X-Outbound-SMTP-Client: 10.193.101.253, [10.193.101.253] X-Outbound-Node: alln-core-8.cisco.com Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org We need to check for a valid io_req before we check other data. Also, removing redundant checks. Signed-off-by: Karan Tilak Kumar Signed-off-by: Satish Kharat Reviewed-by: Arulprabhu Ponnusamy --- drivers/scsi/fnic/fnic.h | 2 +- drivers/scsi/fnic/fnic_scsi.c | 9 ++++----- 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h index e4d399f41a0a..69f373b53132 100644 --- a/drivers/scsi/fnic/fnic.h +++ b/drivers/scsi/fnic/fnic.h @@ -39,7 +39,7 @@ #define DRV_NAME "fnic" #define DRV_DESCRIPTION "Cisco FCoE HBA Driver" -#define DRV_VERSION "1.6.0.52" +#define DRV_VERSION "1.6.0.53" #define PFX DRV_NAME ": " #define DFX DRV_NAME "%d: " diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 532c3c7ae372..36744968378f 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -1735,15 +1735,14 @@ void fnic_terminate_rport_io(struct fc_rport *rport) continue; } - cmd_rport = starget_to_rport(scsi_target(sc->device)); - if (rport != cmd_rport) { + io_req = (struct fnic_io_req *)CMD_SP(sc); + if (!io_req) { spin_unlock_irqrestore(io_lock, flags); continue; } - io_req = (struct fnic_io_req *)CMD_SP(sc); - - if (!io_req || rport != cmd_rport) { + cmd_rport = starget_to_rport(scsi_target(sc->device)); + if (rport != cmd_rport) { spin_unlock_irqrestore(io_lock, flags); continue; }