From patchwork Thu May 20 09:20:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 445422 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=-19.1 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, USER_AGENT_GIT autolearn=ham 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 2935EC433ED for ; Thu, 20 May 2021 10:51:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0FD3561001 for ; Thu, 20 May 2021 10:51:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238873AbhETKwZ (ORCPT ); Thu, 20 May 2021 06:52:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:48312 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238853AbhETKuW (ORCPT ); Thu, 20 May 2021 06:50:22 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D230C61CE1; Thu, 20 May 2021 09:59:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621504778; bh=I4ry09Znr5ak66+cQSdF/fA+BuoUFvRfYRYVxZAWi2I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D6v3/XBwm0thtV51b7b6jg63wFKTOfbkyTApSuXHrWXLUIYdNIvkUcVup48r1L25N go3mkBGO+PfEqhk02r2g1dsg18web/fKMUcBQ4dxIYf1L12VBa+cD8xyzeH6+maItt o/9X0QYnMnSqFMHZ3gbhGB9fe4JNwTaa2wSPBiL8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Quinn Tran , Mike Christie , Himanshu Madhani , Daniel Wagner , Lee Duncan , Bart Van Assche , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.9 033/240] scsi: qla2xxx: Always check the return value of qla24xx_get_isp_stats() Date: Thu, 20 May 2021 11:20:25 +0200 Message-Id: <20210520092109.772140436@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092108.587553970@linuxfoundation.org> References: <20210520092108.587553970@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Bart Van Assche [ Upstream commit a2b2cc660822cae08c351c7f6b452bfd1330a4f7 ] This patch fixes the following Coverity warning: CID 361199 (#1 of 1): Unchecked return value (CHECKED_RETURN) 3. check_return: Calling qla24xx_get_isp_stats without checking return value (as is done elsewhere 4 out of 5 times). Link: https://lore.kernel.org/r/20210320232359.941-7-bvanassche@acm.org Cc: Quinn Tran Cc: Mike Christie Cc: Himanshu Madhani Cc: Daniel Wagner Cc: Lee Duncan Reviewed-by: Daniel Wagner Reviewed-by: Himanshu Madhani Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/qla2xxx/qla_attr.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 33f4181ba9f7..591e2e89ae9f 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1909,6 +1909,8 @@ qla2x00_reset_host_stats(struct Scsi_Host *shost) vha->qla_stats.jiffies_at_last_reset = get_jiffies_64(); if (IS_FWI2_CAPABLE(ha)) { + int rval; + stats = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stats), &stats_dma, GFP_KERNEL); if (!stats) { @@ -1918,7 +1920,11 @@ qla2x00_reset_host_stats(struct Scsi_Host *shost) } /* reset firmware statistics */ - qla24xx_get_isp_stats(base_vha, stats, stats_dma, BIT_0); + rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, BIT_0); + if (rval != QLA_SUCCESS) + ql_log(ql_log_warn, vha, 0x70de, + "Resetting ISP statistics failed: rval = %d\n", + rval); dma_free_coherent(&ha->pdev->dev, sizeof(*stats), stats, stats_dma);