linux-kernel - [PATCH] extcon: Fix kernel hang for find_cable_index_by

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Date:	Mon, 6 Jul 2015 15:31:29 +0300
From:	Roger Quadros <rogerq@...com>
To:	<cw00.choi@...sung.com>
CC:	<linux-omap@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Roger Quadros <rogerq@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH] extcon: Fix kernel hang for find_cable_index_by_name() users

Users of find_cable_index_by_name() will cause a kernel hang
as the while loop counter is never incremented and end condition
is never reached.

Fixes: commit 73b6ecdb93e8 ("extcon: Redefine the unique id of supported external connectors without 'enum extcon' type")
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Roger Quadros <rogerq@...com>
---
 drivers/extcon/extcon.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 76157ab..1acc830 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -138,6 +138,8 @@ static int find_cable_index_by_name(struct extcon_dev *edev, const char *name)
 			id = i;
 			break;
 		}
+
+		i++;
 	}
 
 	if (id == EXTCON_NONE)
-- 
2.1.4

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