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Date: Sat, 09 Sep 2017 22:47:14 +0100
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Peter Chen" <peter.chen@....com>,
"Michael Thalmeier" <michael.thalmeier@...e.at>
Subject: [PATCH 3.16 078/233] usb: chipidea: debug: check before accessing
ci_role
3.16.48-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Michael Thalmeier <michael.thalmeier@...e.at>
commit 0340ff83cd4475261e7474033a381bc125b45244 upstream.
ci_role BUGs when the role is >= CI_ROLE_END.
Signed-off-by: Michael Thalmeier <michael.thalmeier@...e.at>
Signed-off-by: Peter Chen <peter.chen@....com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
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
@@ -286,7 +286,8 @@ 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;
}
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