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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 D73F8C43334 for ; Wed, 5 Sep 2018 09:46:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 851A0205F4 for ; Wed, 5 Sep 2018 09:46:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 851A0205F4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=canonical.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728157AbeIEOPf (ORCPT ); Wed, 5 Sep 2018 10:15:35 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:52270 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725862AbeIEOPe (ORCPT ); Wed, 5 Sep 2018 10:15:34 -0400 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1fxUNx-0004CD-Hk; Wed, 05 Sep 2018 09:46:05 +0000 From: Colin King To: Greg Kroah-Hartman , Christian Gromm , Abdun Nihaal , devel@driverdev.osuosl.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] staging: most: video: fix registration of an empty comp core_component Date: Wed, 5 Sep 2018 10:46:05 +0100 Message-Id: <20180905094605.14827-1-colin.king@canonical.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Colin Ian King Currently we have structrues comp (which is empty) and comp_info being used to register and deregister the component. This mismatch in naming occurred from a previous commit that renamed aim_info to comp. Fix this to use consistent component naming in line with most/net, most/sound etc. This fixes the message two issues, one with a null empty name when loading the module: [ 1485.269515] most_core: registered new core component (null) and an Oops when removing the module: [ 1485.277971] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 1485.278648] PGD 0 P4D 0 [ 1485.279253] Oops: 0002 [#2] SMP PTI [ 1485.279847] CPU: 1 PID: 32629 Comm: modprobe Tainted: P D WC OE 4.18.0-8-generic #9 [ 1485.280442] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 [ 1485.281040] RIP: 0010:most_deregister_component+0x3c/0x70 [most_core] .. etc Fixes: 1b10a0316e2d ("staging: most: video: remove aim designators") Signed-off-by: Colin Ian King --- drivers/staging/most/video/video.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/most/video/video.c b/drivers/staging/most/video/video.c index cf342eb58e10..ad7e28ab9a4f 100644 --- a/drivers/staging/most/video/video.c +++ b/drivers/staging/most/video/video.c @@ -530,7 +530,7 @@ static int comp_disconnect_channel(struct most_interface *iface, return 0; } -static struct core_component comp_info = { +static struct core_component comp = { .name = "video", .probe_channel = comp_probe_channel, .disconnect_channel = comp_disconnect_channel, @@ -565,7 +565,7 @@ static void __exit comp_exit(void) } spin_unlock_irq(&list_lock); - most_deregister_component(&comp_info); + most_deregister_component(&comp); BUG_ON(!list_empty(&video_devices)); } -- 2.17.1