From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56774 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761453AbdEWNkx (ORCPT ); Tue, 23 May 2017 09:40:53 -0400 Subject: Patch "[media] cec: Fix runtime BUG when (CONFIG_RC_CORE && !CEC_CAP_RC)" has been added to the 4.11-stable tree To: lee.jones@linaro.org, gregkh@linuxfoundation.org, hans.verkuil@cisco.com, mchehab@s-opensource.com Cc: , From: Date: Tue, 23 May 2017 15:40:32 +0200 Message-ID: <1495546832181253@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled [media] cec: Fix runtime BUG when (CONFIG_RC_CORE && !CEC_CAP_RC) to the 4.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: cec-fix-runtime-bug-when-config_rc_core-cec_cap_rc.patch and it can be found in the queue-4.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 43c0c03961d0b19bd225a336897606b46e0021a6 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 4 Apr 2017 09:32:19 -0300 Subject: [media] cec: Fix runtime BUG when (CONFIG_RC_CORE && !CEC_CAP_RC) From: Lee Jones commit 43c0c03961d0b19bd225a336897606b46e0021a6 upstream. Currently when the RC Core is enabled (reachable) core code located in cec_register_adapter() attempts to populate the RC structure with a pointer to the 'parent' passed in by the caller. Unfortunately if the caller did not specify RC capability when calling cec_allocate_adapter(), then there will be no RC structure to populate. This causes a "NULL pointer dereference" error. Fixes: f51e80804f0 ("[media] cec: pass parent device in register(), not allocate()") Signed-off-by: Lee Jones Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/cec/cec-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/cec/cec-core.c +++ b/drivers/media/cec/cec-core.c @@ -286,8 +286,8 @@ int cec_register_adapter(struct cec_adap adap->devnode.dev.parent = parent; #if IS_REACHABLE(CONFIG_RC_CORE) - adap->rc->dev.parent = parent; if (adap->capabilities & CEC_CAP_RC) { + adap->rc->dev.parent = parent; res = rc_register_device(adap->rc); if (res) { Patches currently in stable-queue which might be from lee.jones@linaro.org are queue-4.11/cec-fix-runtime-bug-when-config_rc_core-cec_cap_rc.patch