From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1468877-1518324182-2-11950185012516340246 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='uk', MailFrom='org' X-Spam-charsets: cc='UTF-8', plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518324181; b=a9WdRHoLFn7AZBHE2P4LzK8GqWzYeCt6zw52yrBjBgSFY8X vInqo7lBlofW6pnADBUhBhZhy+hCQrWHDcKNtdniQOFOSuM0OivLL6tjh5/1K2qD iBqJ+cmlKF0GMe3/VDIHW7X6kPaIBrK/bHVQF+j1pI8yGTTNqSAK/JOB8UIl7+LA +fSLLielC/Z9IWoffyJLzVQUElm6uU4cP8AApTO/+WbMQkcrG5GxVZjAgIZqEn+Q vBsjWqfsKrQ41oklWR8awT9xYrCvQvRFme7XXAvIxR4yhgBGGmpj8eB15Xs+JFS7 cKpStcyA1Nniy6fNA6LLLx2TwVX1OrvxmmQjfxQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-type:content-transfer-encoding :mime-version:from:to:cc:date:message-id:subject:in-reply-to :sender:list-id; s=arctest; t=1518324181; bh=yYzCj7M6EeCEs4xkRJs FZwZ6rxS8/SMnU21O/SPtzMg=; b=inb2o/cGZguu99fnUIei7x2M54/3QiFx9KE VlD4H6ZKJItP6+nmRKyUz+AGgVFO721boJpjWk7RnUoRnxJVI/siYgRStXtm8/7d hfmHOdO24hkJ3p0sSOiRF1TNFQS+mC0pJgRUnf7eF843ZPzI+s0kPIitWW2PYZ8b nuwxtIOExcHLp/Y0ChHqKX/HIwLW+Z4ZN3b5bkWtA895vcUFYQL6dAsbOVIEzGHU k9KUfYusE6mPbol8aEJ3c/TTVJhZSAqAZbnn+LBkHpucifG8TlwfaJtnmMuFXoA0 0FfQ6vzEgaZCfHLRuzvCaJMx7i91xF2DNfPYx5sZ/nNY7oCED7g== ARC-Authentication-Results: i=1; mx6.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=decadent.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=decadent.org.uk header.result=pass header_is_org_domain=yes Authentication-Results: mx6.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=decadent.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=decadent.org.uk header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753030AbeBKEkx (ORCPT ); Sat, 10 Feb 2018 23:40:53 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:41682 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752938AbeBKEeH (ORCPT ); Sat, 10 Feb 2018 23:34:07 -0500 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Alex Deucher" , "=?UTF-8?q?Christian=20K=C3=B6nig?=" Date: Sun, 11 Feb 2018 04:31:11 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 045/136] drm/ttm: once more fix ttm_buffer_object_transfer In-Reply-To: X-SA-Exim-Connect-IP: 2a02:8011:400e:2:6f00:88c8:c921:d332 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 3.16.54-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Christian König commit 4d98e5ee6084f6d7bc578c5d5f86de7156aaa4cb upstream. When the mutex is locked just in the moment we copy it we end up with a warning that we release a locked mutex. Fix this by properly reinitializing the mutex. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings --- drivers/gpu/drm/ttm/ttm_bo_util.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -463,6 +463,7 @@ static int ttm_buffer_object_transfer(st INIT_LIST_HEAD(&fbo->lru); INIT_LIST_HEAD(&fbo->swap); INIT_LIST_HEAD(&fbo->io_reserve_lru); + mutex_init(&fbo->wu_mutex); drm_vma_node_reset(&fbo->vma_node); atomic_set(&fbo->cpu_writers, 0);