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Date: Wed, 1 Nov 2017 22:17:24 +0100 From: Willy Tarreau <w@....eu> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, linux@...ck-us.net Cc: Michael Thalmeier <michael.thalmeier@...e.at>, Peter Chen <peter.chen@....com>, Willy Tarreau <w@....eu> Subject: [PATCH 3.10 024/139] usb: chipidea: debug: check before accessing ci_role From: Michael Thalmeier <michael.thalmeier@...e.at> commit 0340ff83cd4475261e7474033a381bc125b45244 upstream. ci_role BUGs when the role is >= CI_ROLE_END. Cc: stable@...r.kernel.org Signed-off-by: Michael Thalmeier <michael.thalmeier@...e.at> Signed-off-by: Peter Chen <peter.chen@....com> Signed-off-by: Willy Tarreau <w@....eu> --- 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 36a7063..5a38ca8 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -203,7 +203,8 @@ static int ci_role_show(struct seq_file *s, void *data) { struct ci13xxx *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; } -- 2.8.0.rc2.1.gbe9624a
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