Patch "usb: chipidea: debug: check before accessing ci_role" has been added to the 4.4-stable tree

Patch "usb: chipidea: debug: check before accessing ci_role" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: chipidea: debug: check before accessing ci_role

to the 4.4-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:
     usb-chipidea-debug-check-before-accessing-ci_role.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 0340ff83cd4475261e7474033a381bc125b45244 Mon Sep 17 00:00:00 2001
From: Michael Thalmeier <michael.thalmeier@hale.at>
Date: Thu, 18 May 2017 16:14:14 +0200
Subject: usb: chipidea: debug: check before accessing ci_role

From: Michael Thalmeier <michael.thalmeier@hale.at>

commit 0340ff83cd4475261e7474033a381bc125b45244 upstream.

ci_role BUGs when the role is >= CI_ROLE_END.

Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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;
 }


Patches currently in stable-queue which might be from michael.thalmeier@hale.at are

queue-4.4/usb-chipidea-debug-check-before-accessing-ci_role.patch