From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Michael Thalmeier , Peter Chen Subject: [PATCH 4.4 41/90] usb: chipidea: debug: check before accessing ci_role Date: Mon, 12 Jun 2017 17:25:47 +0200 Message-Id: <20170612152558.787973910@linuxfoundation.org> In-Reply-To: <20170612152556.133240249@linuxfoundation.org> References: <20170612152556.133240249@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Michael Thalmeier commit 0340ff83cd4475261e7474033a381bc125b45244 upstream. ci_role BUGs when the role is >= CI_ROLE_END. Signed-off-by: Michael Thalmeier Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/debug.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -295,7 +295,8 @@ static int ci_role_show(struct seq_file { struct ci_hdrc *ci = s->private; - seq_printf(s, "%s\n", ci_role(ci)->name); + if (ci->role != CI_ROLE_END) + seq_printf(s, "%s\n", ci_role(ci)->name); return 0; }