From patchwork Fri Jun 10 23:35:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 12878161 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D75FCCA47D for ; Fri, 10 Jun 2022 23:36:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350661AbiFJXgP (ORCPT ); Fri, 10 Jun 2022 19:36:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57240 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349341AbiFJXgC (ORCPT ); Fri, 10 Jun 2022 19:36:02 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7AA7C289F0F; Fri, 10 Jun 2022 16:35:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654904138; x=1686440138; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dcKqMrWYeQV/7jbUzKkDrJIenL/1HTp7HjU/MpsQUU0=; b=QmD0ToXlDwFMLHFZf6E7Hwqa3z64LU/YWkMNIQWv7M1jvtDS3l9tOqzx i0cAM33VTJ8fSwsuH7Z/NOrchfGcVNssKIwyOlS5lvDvIOobbdHCqDcfG 7UebsU1TkMIrRTnHY9YTYRHvkM7GHPoZMLh6n+RF91cjGNHO4xyDr2tnf 6SvEXCykWwJ5V0bCjn6J1W/P+/wLa/enqLkjJp3Z1EJx97pFdbQeSkA8o iONvtUveJnAsyZ511wnQl+SyVMiCXv/IiyRX076QYBDot6BMIjGt390w7 mR8dYYte1Wy2qaF4z2AfJapx/pg8X1q5iat0TAtHWejS5ypjj6JT+BW1N A==; X-IronPort-AV: E=McAfee;i="6400,9594,10374"; a="266547096" X-IronPort-AV: E=Sophos;i="5.91,291,1647327600"; d="scan'208";a="266547096" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jun 2022 16:35:37 -0700 X-IronPort-AV: E=Sophos;i="5.91,291,1647327600"; d="scan'208";a="586450901" Received: from pleung-mobl1.amr.corp.intel.com (HELO localhost) ([10.212.33.34]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jun 2022 16:35:37 -0700 From: ira.weiny@intel.com To: linux-api@vger.kernel.org Cc: Ira Weiny , Dave Hansen , "Aneesh Kumar K . V" , Sohil Mehta , x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org Subject: [RFC PATCH 2/6] testing/pkeys: Don't use uninitialized variable Date: Fri, 10 Jun 2022 16:35:29 -0700 Message-Id: <20220610233533.3649584-3-ira.weiny@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220610233533.3649584-1-ira.weiny@intel.com> References: <20220610233533.3649584-1-ira.weiny@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: Ira Weiny err was being used in test_pkey_alloc_exhaust() prior to being assigned. errno is useful to know after a failed alloc_pkey() call. Change err to errno in the debug print. Cc: Dave Hansen Cc: Aneesh Kumar K.V Signed-off-by: Ira Weiny --- tools/testing/selftests/vm/protection_keys.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c index d0183c381859..43e47de19c0d 100644 --- a/tools/testing/selftests/vm/protection_keys.c +++ b/tools/testing/selftests/vm/protection_keys.c @@ -1225,9 +1225,9 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey) int new_pkey; dprintf1("%s() alloc loop: %d\n", __func__, i); new_pkey = alloc_pkey(); - dprintf4("%s()::%d, err: %d pkey_reg: 0x%016llx" + dprintf4("%s()::%d, errno: %d pkey_reg: 0x%016llx" " shadow: 0x%016llx\n", - __func__, __LINE__, err, __read_pkey_reg(), + __func__, __LINE__, errno, __read_pkey_reg(), shadow_pkey_reg); read_pkey_reg(); /* for shadow checking */ dprintf2("%s() errno: %d ENOSPC: %d\n", __func__, errno, ENOSPC);