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 X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8ABFC43333 for ; Mon, 28 Dec 2020 15:52:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BAD6722472 for ; Mon, 28 Dec 2020 15:52:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403840AbgL1NkI (ORCPT ); Mon, 28 Dec 2020 08:40:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:40392 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403832AbgL1NkH (ORCPT ); Mon, 28 Dec 2020 08:40:07 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id C45CE21D94; Mon, 28 Dec 2020 13:39:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609162766; bh=e+qvI8qBpQeJ1hvA2ymsdRViRRyKtvBUdtw+Jvk615Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GpYwk3XG0cuBxuRx/sp78jIVH7V5voUNbhoWAXMqpZCs/YFeHZ3OkWtgXQPNU1iiT 82tIy+362XygDat6+bRIBqh0DcB1lnU1F8Ijiy7v9C59hxpAz6o+2IMnw9qb7cTyo+ wDXw8MD0YgZeUDPT7T8mLnc5MN4LtzlbyqEMHBh8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Deepak R Varma , Thierry Reding , Sasha Levin Subject: [PATCH 5.4 037/453] drm/tegra: replace idr_init() by idr_init_base() Date: Mon, 28 Dec 2020 13:44:33 +0100 Message-Id: <20201228124939.049596257@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228124937.240114599@linuxfoundation.org> References: <20201228124937.240114599@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Deepak R Varma [ Upstream commit 41f71629b4c432f8dd47d70ace813be5f79d4d75 ] idr_init() uses base 0 which is an invalid identifier for this driver. The new function idr_init_base allows IDR to set the ID lookup from base 1. This avoids all lookups that otherwise starts from 0 since 0 is always unused. Signed-off-by: Deepak R Varma Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin --- drivers/gpu/drm/tegra/drm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index bc7cc32140f81..6833dfad7241b 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -256,7 +256,7 @@ static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp) if (!fpriv) return -ENOMEM; - idr_init(&fpriv->contexts); + idr_init_base(&fpriv->contexts, 1); mutex_init(&fpriv->lock); filp->driver_priv = fpriv; -- 2.27.0