Fix rfkill code which caused a use-after-free bug.
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stefano Brivioauthored and John W. Linvillecommited 2008-01-16 12:53:32 -05:00
This fixes Bug #9414
Since addition of the rfkill callback, the LED associated with the off
switch on the radio has not worked for several reasons:
(1) Essential data in the rfkill structure were missing.
(2) The rfkill structure was initialized after the LED initialization.
(3) There was a minor memory leak if the radio LED structure was inited.
Once the above problems were fixed, additional difficulties were noted:
(4) The radio LED was in the wrong state at startup.
(5) The radio switch had to be manipulated twice for each state change.
(6) A circular mutex locking situation existed.
(7) If rfkill-input is built as a module, it is not automatically loaded.
This patch fixes all of the above.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Larry Fingerauthored and John W. Linvillecommited 2007-12-17 17:01:40 -05:00
The rfkill subsystem doesn't like code like that
rfkill_allocate();
rfkill_register();
rfkill_unregister();
rfkill_register(); /* <- This will crash */
This sequence happens with
modprobe b43
ifconfig wlanX up
ifconfig wlanX down
ifconfig wlanX up
Fix this by always re-allocating the rfkill stuff before register.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Bueschauthored and Jeff Garzikcommited 2007-11-10 04:25:12 -05:00
wl->mutex might already be locked on initialization.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Bueschauthored and Jeff Garzikcommited 2007-11-10 04:25:12 -05:00
This removes the direct call to rfkill on an rfkill event
and replaces it with an input device. This way userspace is also
notified about the event.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Bueschauthored and David S. Millercommited 2007-10-10 16:54:13 -07:00
This adds full support for the RFKILL button and
the RFKILL LED trigger.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Bueschauthored and David S. Millercommited 2007-10-10 16:54:12 -07:00
Stefano Brivio
authored and
John W. Linville
commited 
Larry Finger
authored and
Michael Buesch
authored and
Jeff Garzik
commited 
David S. Miller
commited