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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 4C114C4363A for ; Tue, 27 Oct 2020 17:08:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0095D21D42 for ; Tue, 27 Oct 2020 17:08:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603818484; bh=FxsYMJh5GcWQ2EJ+/uAx3LwJ1jKoEX3seiWRCNptn3o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KVOFuQLeC2Cr01uw6gR2JHh4M1QngQenYyjtUoaMjfiLU31Zevc7D3LNCVJNG8S7w 8hgOl3xYz0dUjDk05XZfFzhLqih/V3NXpfcDEEefJH5CnITDOlkuzUxUpS3MqgoOYz gpYiTVFl+GDd4Zu6TLf3u+0QyxQEZ7jHjVTjbeUY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1816482AbgJ0RIC (ORCPT ); Tue, 27 Oct 2020 13:08:02 -0400 Received: from mail.kernel.org ([198.145.29.99]:33490 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1787423AbgJ0PAI (ORCPT ); Tue, 27 Oct 2020 11:00:08 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 58FB920714; Tue, 27 Oct 2020 15:00:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603810808; bh=FxsYMJh5GcWQ2EJ+/uAx3LwJ1jKoEX3seiWRCNptn3o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZvFzX8gHjaRto8KhQ3RXfiFwHt9QE1mf0vSphcqWq5mcKNE+O32vCnoeFlS5IPcBP MOhpln4wTXVKmtuzfef8gE+Cp3lSLLznSX7HSHgjdjp5aeC8Z2zYmNNTMB5Tn7XoX/ gf2N/Md7Vs8Gm52wuDatx8mM750NHHrkxCP9U47U= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Srinivas Kandagatla , Sasha Levin Subject: [PATCH 5.8 270/633] slimbus: core: check get_addr before removing laddr ida Date: Tue, 27 Oct 2020 14:50:13 +0100 Message-Id: <20201027135535.332630448@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135522.655719020@linuxfoundation.org> References: <20201027135522.655719020@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: linux-kernel@vger.kernel.org From: Srinivas Kandagatla [ Upstream commit f97769fde678e111a1b7b165b380d8a3dfe54f4e ] logical address can be either assigned by the SLIMBus controller or the core. Core uses IDA in cases where get_addr callback is not provided by the controller. Core already has this check while allocating IDR, however during absence reporting this is not checked. This patch fixes this issue. Fixes: 46a2bb5a7f7e ("slimbus: core: Add slim controllers support") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200925095520.27316-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/slimbus/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/slimbus/core.c b/drivers/slimbus/core.c index ae1e248a8fb8a..58b63ae0e75a6 100644 --- a/drivers/slimbus/core.c +++ b/drivers/slimbus/core.c @@ -326,8 +326,8 @@ void slim_report_absent(struct slim_device *sbdev) mutex_lock(&ctrl->lock); sbdev->is_laddr_valid = false; mutex_unlock(&ctrl->lock); - - ida_simple_remove(&ctrl->laddr_ida, sbdev->laddr); + if (!ctrl->get_laddr) + ida_simple_remove(&ctrl->laddr_ida, sbdev->laddr); slim_device_update_status(sbdev, SLIM_DEVICE_STATUS_DOWN); } EXPORT_SYMBOL_GPL(slim_report_absent); -- 2.25.1