From: Dan Carpenter Date: Tue, 4 Aug 2015 07:47:23 +0000 (+0300) Subject: extcon: Fix signedness bugs about break error handling X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a598af7f0279195abffbfb9bf2070457e9c89ff3;p=linux-beck.git 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 Reviewed-by: Roger Quadros [cw00.choi: Change the patch title and fix signedness bug of find_cable_index_by_id() ] Signed-off-by: Chanwoo Choi --- 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)