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Message-Id: <20170518141414.30798-1-michael.thalmeier@hale.at>
Date: Thu, 18 May 2017 16:14:14 +0200
From: Michael Thalmeier <michael.thalmeier@...e.at>
To: Peter Chen <Peter.Chen@....com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
michael@...lmeier.at
Subject: [PATCH] usb: chipidea: debug: check before accessing ci_role
ci_role BUGs when the role is >= CI_ROLE_END.
Signed-off-by: Michael Thalmeier <michael.thalmeier@...e.at>
---
drivers/usb/chipidea/debug.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 6d23eed..1c31e8a 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -294,7 +294,8 @@ static int ci_role_show(struct seq_file *s, void *data)
{
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;
}
--
2.9.2
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