On 25 September 2012 14:45, anish singh <[email protected]> wrote: > On Tue, Sep 25, 2012 at 12:28 PM, Sachin Kamat <[email protected]> > wrote: >> Return the value obtained from extcon_find_cable_index() >> instead of -ENODEV. >> >> Fixes the following smatch info: >> drivers/extcon/extcon-class.c:478 extcon_register_interest() info: >> why not propagate 'obj->cable_index' from extcon_find_cable_index() >> instead of -19? >> >> Signed-off-by: Sachin Kamat <[email protected]> >> --- >> drivers/extcon/extcon-class.c | 2 +- >> 1 files changed, 1 insertions(+), 1 deletions(-) >> >> diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c >> index 946a318..e996800 100644 >> --- a/drivers/extcon/extcon-class.c >> +++ b/drivers/extcon/extcon-class.c >> @@ -475,7 +475,7 @@ 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 obj->cable_index; > I think ENODEV is right here as the function will return negative > value only when > there is no such device for which the user is trying to register the interest. > Is there any problem with that?
extcon_find_cable_index() returns -EINVAL when it fails. Hence it is better to propagate the same error code instead of a different one. >> >> obj->user_nb = nb; >> >> -- >> 1.7.4.1 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to [email protected] >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ -- With warm regards, Sachin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
