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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,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 CD693C33CB6 for ; Thu, 16 Jan 2020 17:17:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9A9F220728 for ; Thu, 16 Jan 2020 17:17:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579195027; bh=0YFaWcb15ye1CrXZgnwX8z1XFUDrX3MGS2VAo9jXphY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=qWxAgscukQ+e+YxK58ASRimvOtVoekTyIWd7TpoD2lHF9kVV4b/Mammtg4NCd4F+b xuNonEIapdHe+FdPKbtc3M46BvlCZIrrdQcTCf9vT1b/ewFjeEPJY44Kj919qL7dGu 8xmsmG4DGNEmwmLm3jIcZsd+JlAn8VsGsGvIl6sc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390466AbgAPRN4 (ORCPT ); Thu, 16 Jan 2020 12:13:56 -0500 Received: from mail.kernel.org ([198.145.29.99]:59592 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390818AbgAPRNp (ORCPT ); Thu, 16 Jan 2020 12:13:45 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BB3AF246A5; Thu, 16 Jan 2020 17:13:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579194825; bh=0YFaWcb15ye1CrXZgnwX8z1XFUDrX3MGS2VAo9jXphY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u86rZRpTkpCHd66AgrPZwZUw9zqD0dlCkmjJbt47euW5tD+nF08pYxbOSZeq19OEA +8bBBSY1ZwQMpihol0qF8PsUxs3eJYlmH5Sk35bJACjPcB7JZB+7ibYMENP/p9fwnq 48MfaJD35OAsTkBzhwpmcEmVEy9qCuzu9Egbat9c= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Leon Romanovsky , Jason Gunthorpe , Sasha Levin , linux-rdma@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 629/671] RDMA/mlx5: Return proper error value Date: Thu, 16 Jan 2020 12:04:27 -0500 Message-Id: <20200116170509.12787-366-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200116170509.12787-1-sashal@kernel.org> References: <20200116170509.12787-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore 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 [ Upstream commit 546d30099ed204792083f043cd7e016de86016a3 ] 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: Sasha Levin --- drivers/infiniband/hw/mlx5/mr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index bd1fdadf7ba0..18fd9aa6510f 100644 --- 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(struct mlx5_ib_dev *dev, int entry) 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]; -- 2.20.1