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Message-Id: <20151018014738.315013953@linuxfoundation.org> Date: Sat, 17 Oct 2015 18:58:07 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>, Roger Quadros <rogerq@...com>, Chanwoo Choi <cw00.choi@...sung.com> Subject: [PATCH 4.2 174/258] extcon: Fix signedness bugs about break error handling 4.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter <dan.carpenter@...cle.com> commit a598af7f0279195abffbfb9bf2070457e9c89ff3 upstream. 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@...cle.com> Reviewed-by: Roger Quadros <rogerq@...com> [cw00.choi: Change the patch title and fix signedness bug of find_cable_index_by_id() ] Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/extcon/extcon.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -126,7 +126,7 @@ static int find_cable_index_by_id(struct 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 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; @@ -378,7 +378,7 @@ 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) @@ -426,7 +426,7 @@ 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) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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