From: Dan Carpenter <dan.carpenter@oracle.com>
To: MyungJoo Ham <myungjoo.ham@samsung.com>, Roger Quadros <rogerq@ti.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] extcon: signedness bugs break error handling
Date: Tue, 04 Aug 2015 07:47:23 +0000 [thread overview]
Message-ID: <20150804074723.GC10867@mwanda> (raw)
Unsigned is never less than zero so this error handling won't work.
Fixes: be052cc87745 ('extcon: Fix hang and extcon_get/set_cable_state().')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 8301a72..da2fb6c 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -143,7 +143,7 @@ static int find_cable_id_by_name(struct extcon_dev *edev, const char *name)
static int find_cable_index_by_name(struct extcon_dev *edev, const char *name)
{
- unsigned int id;
+ int id;
if (edev->max_supported = 0)
return -EINVAL;
@@ -379,7 +379,7 @@ EXPORT_SYMBOL_GPL(extcon_get_cable_state_);
*/
int extcon_get_cable_state(struct extcon_dev *edev, const char *cable_name)
{
- unsigned int id;
+ int id;
id = find_cable_id_by_name(edev, cable_name);
if (id < 0)
@@ -430,7 +430,7 @@ EXPORT_SYMBOL_GPL(extcon_set_cable_state_);
int extcon_set_cable_state(struct extcon_dev *edev,
const char *cable_name, bool cable_state)
{
- unsigned int id;
+ int id;
id = find_cable_id_by_name(edev, cable_name);
if (id < 0)
next reply other threads:[~2015-08-04 7:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-04 7:47 Dan Carpenter [this message]
2015-08-04 8:40 ` [patch] extcon: signedness bugs break error handling Roger Quadros
2015-08-04 10:56 ` Chanwoo Choi
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