From patchwork Thu Jan 5 14:41:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Auld X-Patchwork-Id: 9499101 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3B5DB606B4 for ; Thu, 5 Jan 2017 14:42:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2FB55283FC for ; Thu, 5 Jan 2017 14:42:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 211C828400; Thu, 5 Jan 2017 14:42:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B9FCB283FC for ; Thu, 5 Jan 2017 14:42:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 581006E314; Thu, 5 Jan 2017 14:42:36 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 912686E314 for ; Thu, 5 Jan 2017 14:42:34 +0000 (UTC) Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga102.fm.intel.com with ESMTP; 05 Jan 2017 06:42:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,321,1477983600"; d="scan'208";a="45998057" Received: from mwahaha.ld.intel.com ([10.103.238.160]) by orsmga004.jf.intel.com with ESMTP; 05 Jan 2017 06:42:32 -0800 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Date: Thu, 5 Jan 2017 14:41:31 +0000 Message-Id: <1483627291-7532-1-git-send-email-matthew.auld@intel.com> X-Mailer: git-send-email 2.7.4 Subject: [Intel-gfx] [PATCH] drm/i915: initialize ret in i915_gem_evict_something X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP If we find a suitable victim node on our first pass, then ret will be uninitialized which could lead to some funny business later. Fixes: 9332f3b1b99a ("drm/i915: Combine loops within i915_gem_evict_something") Cc: Chris Wilson Signed-off-by: Matthew Auld --- drivers/gpu/drm/i915/i915_gem_evict.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c index 50129ec1caab..19716548c455 100644 --- a/drivers/gpu/drm/i915/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/i915_gem_evict.c @@ -109,7 +109,7 @@ i915_gem_evict_something(struct i915_address_space *vm, }, **phase; struct i915_vma *vma, *next; struct drm_mm_node *node; - int ret; + int ret = 0; lockdep_assert_held(&vm->i915->drm.struct_mutex); trace_i915_gem_evict(vm, min_size, alignment, flags);