extcon: Fix return value in extcon_register_interest()

Propagate the value returned from extcon_find_cable_index()
instead of -ENODEV. For readability, -EINVAL is returned in place of
the variable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index 54dc00b..79f5dba 100644 (file)
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -469,7 +469,7 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
 
        obj->cable_index = extcon_find_cable_index(obj->edev, cable_name);
        if (obj->cable_index < 0)
-               return -ENODEV;
+               return -EINVAL;
 
        obj->user_nb = nb;