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extcon: Fix signedness bugs about break error handling

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Unsigned is never less than zero so this error handling won't work.

Fixes: be052cc877 ('extcon: Fix hang and extcon_get/set_cable_state().')
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Roger Quadros <[email protected]>
[cw00.choi: Change the patch title and fix signedness bug of find_cable_index_by_id() ]
Signed-off-by: Chanwoo Choi <[email protected]>
This commit is contained in:
Dan Carpenter 2015-08-04 10:47:23 +03:00 • committed by Chanwoo Choi
commit a598af7f02
1 changed files with 4 additions and 4 deletions
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8
drivers/extcon/extcon.c
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@ -126,7 +126,7 @@ static int find_cable_index_by_id(struct extcon_dev *edev, const unsigned int id
static int find_cable_id_by_name(struct extcon_dev *edev, const char *name)
{
unsigned int id = -EINVAL;
int id = -EINVAL;
int i = 0;
/* Find the id of extcon cable */
@ -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)