From patchwork Tue Apr 24 13:15:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 10359905 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 7CCC660225 for ; Tue, 24 Apr 2018 13:36:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6BBCA2832B for ; Tue, 24 Apr 2018 13:36:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6065128DF0; Tue, 24 Apr 2018 13:36:09 +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=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, 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 6AEDB2832B for ; Tue, 24 Apr 2018 13:36:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EF6586E058; Tue, 24 Apr 2018 13:36:06 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org X-Greylist: delayed 1217 seconds by postgrey-1.36 at gabe; Tue, 24 Apr 2018 13:36:05 UTC Received: from gateway24.websitewelcome.com (gateway24.websitewelcome.com [192.185.51.35]) by gabe.freedesktop.org (Postfix) with ESMTPS id B34A36E058 for ; Tue, 24 Apr 2018 13:36:05 +0000 (UTC) Received: from cm13.websitewelcome.com (cm13.websitewelcome.com [100.42.49.6]) by gateway24.websitewelcome.com (Postfix) with ESMTP id C121D6E99D4 for ; Tue, 24 Apr 2018 08:15:46 -0500 (CDT) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id AxnOfHYZfQUwqAxnOf2cOg; Tue, 24 Apr 2018 08:15:46 -0500 X-Authority-Reason: nr=8 Received: from [189.145.48.65] (port=55476 helo=embeddedor) by gator4166.hostgator.com with esmtpa (Exim 4.89_1) (envelope-from ) id 1fAxnO-002UtM-5V; Tue, 24 Apr 2018 08:15:46 -0500 Date: Tue, 24 Apr 2018 08:15:45 -0500 From: "Gustavo A. R. Silva" To: Chris Wilson , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie Message-ID: <20180424131545.GA4053@embeddedor.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - lists.freedesktop.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 189.145.48.65 X-Source-L: No X-Exim-ID: 1fAxnO-002UtM-5V X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: (embeddedor) [189.145.48.65]:55476 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 6 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes Subject: [Intel-gfx] [PATCH] drm/i915/selftests: Fix uninitialized variable X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, "Gustavo A. R. Silva" Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP There is a potential execution path in which variable err is returned without being properly initialized previously. Fix this by initializing variable err to 0. Addresses-Coverity-ID: 1468362 ("Uninitialized scalar variable") Fixes: f4ecfbfc32ed ("drm/i915: Check whitelist registers across resets") Signed-off-by: Gustavo A. R. Silva Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/selftests/intel_workarounds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/selftests/intel_workarounds.c b/drivers/gpu/drm/i915/selftests/intel_workarounds.c index 5455b26..17444a3 100644 --- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c +++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c @@ -239,7 +239,7 @@ static int live_reset_whitelist(void *arg) struct intel_engine_cs *engine = i915->engine[RCS]; struct i915_gpu_error *error = &i915->gpu_error; struct whitelist w; - int err; + int err = 0; /* If we reset the gpu, we should not lose the RING_NONPRIV */