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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 F271FC33CB6 for ; Thu, 16 Jan 2020 23:38:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C52DC2072B for ; Thu, 16 Jan 2020 23:38:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579217886; bh=PR6LMv/Zh4dtqefYb0m3O0npAsftNZ4io3k5rQIBbyQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=TBL9DmtXUTMvYJd+IyWAw1cfxDwQxLs5JuEFtuns69bNiu/ncxEvQrXVCVID+DOkG oCyOTTKwytfORNRMldk5Ukgob8MIWiiUoN/6FlcqiFfkknfvQ4Ykiq7UKPsJhVIVsr 6bp0YUJ/qc5DgcQfuw99k34xn/rNK17fiPlwfyFE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391371AbgAPX3z (ORCPT ); Thu, 16 Jan 2020 18:29:55 -0500 Received: from mail.kernel.org ([198.145.29.99]:35776 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391348AbgAPX3q (ORCPT ); Thu, 16 Jan 2020 18:29:46 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D9DD12072E; Thu, 16 Jan 2020 23:29:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579217386; bh=PR6LMv/Zh4dtqefYb0m3O0npAsftNZ4io3k5rQIBbyQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UyIdX8mpXAj6foVSMXzCBZcCYoQmnQxY5gfIcQUxB0V0fV/lotmvsvzYTPJgWCr3A SeijNVwjyYJfbI0ZpGSWepw0tvMRLyYv/XmJ6eKaeV3hvWGX6dDmZSEVRYS/1Bmcw3 yJMkB7NdCNKNMgteMYhfIjD9QcpN/Gb8Lcm0d34s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Leon Romanovsky , Jason Gunthorpe Subject: [PATCH 4.19 35/84] RDMA/mlx5: Return proper error value Date: Fri, 17 Jan 2020 00:18:09 +0100 Message-Id: <20200116231717.902259017@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200116231713.087649517@linuxfoundation.org> References: <20200116231713.087649517@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Leon Romanovsky commit 546d30099ed204792083f043cd7e016de86016a3 upstream. Returned value from mlx5_mr_cache_alloc() is checked to be error or real pointer. Return proper error code instead of NULL which is not checked later. Fixes: 81713d3788d2 ("IB/mlx5: Add implicit MR support") Link: https://lore.kernel.org/r/20191029055721.7192-1-leon@kernel.org Signed-off-by: Leon Romanovsky Reviewed-by: Jason Gunthorpe Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/mlx5/mr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -457,7 +457,7 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(s if (entry < 0 || entry >= MAX_MR_CACHE_ENTRIES) { mlx5_ib_err(dev, "cache entry %d is out of range\n", entry); - return NULL; + return ERR_PTR(-EINVAL); } ent = &cache->ent[entry];