From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754888AbdL1RtT (ORCPT ); Thu, 28 Dec 2017 12:49:19 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:60162 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932437AbdL1RcW (ORCPT ); Thu, 28 Dec 2017 12:32:22 -0500 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Colin Ian King" , "Doug Ledford" , "Leon Romanovsky" Date: Thu, 28 Dec 2017 17:05:44 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 039/204] IB/ocrdma: fix incorrect fall-through on switch statement In-Reply-To: X-SA-Exim-Connect-IP: 2a02:8011:400e:2:6f00:88c8:c921:d332 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.52-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Colin Ian King commit 06564f60859bdf7e73d70ae35d7e285e96ae9c46 upstream. In the case where mbox_status is OCRDMA_MBX_STATUS_FAILED and add_status is OCRDMA_MBX_STATUS_FAILED err_num is assigned -EAGAIN however the case OCRDMA_MBX_STATUS_FAILED is missing a break and falls through to the default case which then re-assigns err_num to -EFAULT. Fix this so that err_num is assigned to -EAGAIN for the add_status OCRDMA_MBX_STATUS_FAILED case and -EFAULT otherwise. Detected by CoverityScan CID#703125 ("Missing break in switch") Fixes: fe2caefcdf58 ("RDMA/ocrdma: Add driver for Emulex OneConnect IBoE RDMA adapter") Signed-off-by: Colin Ian King Reviewed-by: Leon Romanovsky Signed-off-by: Doug Ledford Signed-off-by: Ben Hutchings --- drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -235,7 +235,10 @@ static int ocrdma_get_mbx_errno(u32 stat case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES: err_num = -EAGAIN; break; + default: + err_num = -EFAULT; } + break; default: err_num = -EFAULT; }