From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org by pdx-caf-mail.web.codeaurora.org (Dovecot) with LMTP id SoJMFI1KGVupVgAAmS7hNA ; Thu, 07 Jun 2018 15:10:08 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id E1ACA6089E; Thu, 7 Jun 2018 15:10:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by smtp.codeaurora.org (Postfix) with ESMTP id 5BE14601B4; Thu, 7 Jun 2018 15:10:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5BE14601B4 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=decadent.org.uk Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965083AbeFGPKF (ORCPT + 25 others); Thu, 7 Jun 2018 11:10:05 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:41498 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933515AbeFGPDP (ORCPT ); Thu, 7 Jun 2018 11:03:15 -0400 Received: from [148.252.241.226] (helo=deadeye) by shadbolt.decadent.org.uk with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1fQvbs-0005hL-M6; Thu, 07 Jun 2018 15:09:52 +0100 Received: from ben by deadeye with local (Exim 4.91) (envelope-from ) id 1fQvb0-0002nu-Nt; Thu, 07 Jun 2018 15:08:58 +0100 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, "Geert Uytterhoeven" , "Jason Gunthorpe" , "Tatyana Nikolova" Date: Thu, 07 Jun 2018 15:05:21 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 083/410] RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo() In-Reply-To: X-SA-Exim-Connect-IP: 148.252.241.226 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.57-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Geert Uytterhoeven commit 302d6424e4a293a5761997e6c9fc3dfb1e4c355f upstream. With gcc-4.1.2: drivers/infiniband/core/iwpm_util.c: In function ‘iwpm_send_mapinfo’: drivers/infiniband/core/iwpm_util.c:647: warning: ‘ret’ may be used uninitialized in this function Indeed, if nl_client is not found in any of the scanned has buckets, ret will be used uninitialized. Preinitialize ret to -EINVAL to fix this. Fixes: 30dc5e63d6a5ad24 ("RDMA/core: Add support for iWARP Port Mapper user space service") Signed-off-by: Geert Uytterhoeven Reviewed-by: Tatyana Nikolova Signed-off-by: Jason Gunthorpe [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings --- drivers/infiniband/core/iwpm_util.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/infiniband/core/iwpm_util.c +++ b/drivers/infiniband/core/iwpm_util.c @@ -513,6 +513,7 @@ int iwpm_send_mapinfo(u8 nl_client, int } skb_num++; spin_lock_irqsave(&iwpm_mapinfo_lock, flags); + ret = -EINVAL; for (i = 0; i < IWPM_HASH_BUCKET_SIZE; i++) { hlist_for_each_entry(map_info, &iwpm_hash_bucket[i], hlist_node) {