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 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 239B4C36010 for ; Sat, 5 Apr 2025 07:09:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F375810E010; Sat, 5 Apr 2025 07:09:48 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="QQbPGL12"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id DE82010E010 for ; Sat, 5 Apr 2025 07:09:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1743836987; x=1775372987; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=r5v8qpuuNJ7V5LDRfyqvzMuCtDG5kmjmKUducAd45K4=; b=QQbPGL12prAKI4aXDICu73hB3UajA8cOGHmi3dIQM5FgLONFuH+l1Rr6 5KjE+7JApsGQmzdlB9M02UiUuCdroshXYWuMXe/CxN/DJi8W1O5HY16CR nefJNhxNfkzi0ntYciS5t6R4IOqVqxELOvY6KJZioRRsQQGMBXSubybuz gQsTIyh0bX3JzD3/D6MYN+hENIKIY6bro4R7mYiV4cyy6CcwlnXXpAIaH 29KGM1CZi7qIg6vF1gFCCmde069Hd5jlHTCZSbG+4BivDeu1JF77H9vlj ti5dzhp67lx8F09Z4dDukDye80Cr+K4u4ikkV3zXgwwxR1ozwar+ipuSh g==; X-CSE-ConnectionGUID: Ox3JHYPCSKm0r/tXbXYe1Q== X-CSE-MsgGUID: urfNxelyRQO4965mY3Wspw== X-IronPort-AV: E=McAfee;i="6700,10204,11394"; a="56649627" X-IronPort-AV: E=Sophos;i="6.15,190,1739865600"; d="scan'208";a="56649627" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Apr 2025 00:09:44 -0700 X-CSE-ConnectionGUID: u/WkLMvbSC2e7H+PyrTtLg== X-CSE-MsgGUID: puX1rvr3RFCTJBgLf3mMLg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,190,1739865600"; d="scan'208";a="127808407" Received: from gsd-build.iind.intel.com ([10.190.229.173]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Apr 2025 00:09:43 -0700 From: Sobin Thomas To: intel-xe@lists.freedesktop.org Cc: tejas.upadhyay@intel.com Subject: [PATCH i-g-t 1/1] drm/xe: xe_hw_engine_class: Add fault injection and improve error handling in kobj_xe_hw_engine_class Date: Sat, 5 Apr 2025 06:54:32 +0000 Message-Id: <20250405065432.2254703-1-sobin.thomas@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" - Added fault injection for `kobj_xe_hw_engine_class` to enhance coverage. - Improved error handling by checking for `IS_ERR_OR_NULL` on `keclass` and propagating the error using `PTR_ERR`. Can be tested using inject-fault-probe-function-kobj_xe_hw_engine_class Signed-off-by: Sobin Thomas --- drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c b/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c index 640950172088..0cafe1175389 100644 --- a/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c +++ b/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c @@ -571,6 +571,7 @@ kobj_xe_hw_engine_class(struct xe_device *xe, struct kobject *parent, const char return keclass; } +ALLOW_ERROR_INJECTION(kobj_xe_hw_engine_class, NULL); static void hw_engine_class_defaults_fini(void *arg) { @@ -662,8 +663,8 @@ int xe_hw_engine_class_sysfs_init(struct xe_gt *gt) } keclass = kobj_xe_hw_engine_class(xe, kobj, name); - if (!keclass) { - err = -EINVAL; + if (IS_ERR_OR_NULL(keclass)) { + err = PTR_ERR(keclass); goto err_object; } -- 2.34.1