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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2015-08-04 09:47:23 +0200 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2015-08-10 04:48:57 +0200 |
| commit | a598af7f0279195abffbfb9bf2070457e9c89ff3 (patch) | |
| tree | f2ebc9053cd17f5e5618ac898bd751c80c7e6c65 /drivers/extcon | |
| parent | extcon: Drop owner assignment from i2c_driver (diff) | |
| download | linux-a598af7f0279195abffbfb9bf2070457e9c89ff3.tar.xz linux-a598af7f0279195abffbfb9bf2070457e9c89ff3.zip | |
extcon: Fix signedness bugs about break error handling
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>
Reviewed-by: Roger Quadros <rogerq@ti.com>
[cw00.choi: Change the patch title and fix signedness bug of find_cable_index_by_id() ]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 8301a72b1073..a07addde297b 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -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) |