kernel-ark/net/rfkill
Henrique de Moraes Holschuh fd4484af7c rfkill: ignore errors from rfkill_toggle_radio in rfkill_add_switch
rfkill_add_switch() calls rfkill_toggle_radio() to set the state of a
recently registered rfkill class to the current global state [for that
rfkill->type].

The rfkill_toggle_radio() call is going to error out if the hardware is
RFKILL_STATE_HARD_BLOCKED, and the global state is RFKILL_STATE_UNBLOCKED.

That is a quite normal situation which I missed to account for.  As things
stand, the error return from rfkill_toggle_radio ends up causing
rfkill_register to bail out with an error (de-registering the new switch in
the process), which is Not Nice.

Change rfkill_add_switch() to not return errors because of a failed call to
rfkill_toggle_radio().  We can go back to returning errors again (if that's
indeed the right thing to do) if we define the exact error codes the
rfkill->toggle_radio callbacks are to return in each situation, so that we
can ignore the right ones only.

Bug reported by "kionez <kionez@anche.no>".

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: kionez <kionez@anche.no>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-07-08 14:16:03 -04:00
..
Kconfig [RFKILL]: Add support for an rfkill LED. 2007-10-10 16:54:10 -07:00
Makefile
rfkill-input.c rfkill: rename the rfkill_state states and add block-locked state 2008-06-26 14:21:22 -04:00
rfkill-input.h rfkill: do not allow userspace to override ALL RADIOS OFF 2008-06-26 14:21:22 -04:00
rfkill.c rfkill: ignore errors from rfkill_toggle_radio in rfkill_add_switch 2008-07-08 14:16:03 -04:00