rfkill: fix led-trigger unregister order in error unwind

rfkill needs to unregister the led trigger AFTER a call to
rfkill_remove_switch(), otherwise it will not update the LED state,
possibly leaving it ON when it should be OFF.

To make led-trigger unregistering safer, guard against unregistering a
trigger twice, and also against issuing trigger events to a led trigger
that was unregistered.  This makes the error unwind paths more resilient.

Refer to "rfkill: Register LED triggers before registering switch".

Signed-off-by: Henrique de Moraes Holschuh <[email protected]>
Acked-by: Ivo van Doorn <[email protected]>
Cc: Michael Buesch <[email protected]>
Cc: Dmitry Baryshkov <[email protected]>
Signed-off-by: John W. Linville <[email protected]>

0 files changed, 0 insertions, 0 deletions