diff options
| author | Michael Buesch <mb@bu3sch.de> | 2010-03-19 10:38:33 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-01 15:58:55 -0700 |
| commit | e548510b30a5b74f9be9c501d955ca90c7d1a8d0 (patch) | |
| tree | ce31ad373e269c63ca5a1f1456de37de907c3386 /kernel/mutex-debug.c | |
| parent | f15a9d8a07f97af708304414910e7daeb5e5936d (diff) | |
b43: Workaround circular locking in hw-tkip key update callback
commit 96869a39399269a776a94812e9fff3d38b47d838 upstream
The TKIP key update callback is called from the RX path, where the driver
mutex is already locked. This results in a circular locking bug.
Avoid this by removing the lock.
Johannes noted that there is a separate bug: The callback still breaks on SDIO
hardware, because SDIO hardware access needs to sleep, but we are not allowed
to sleep in the callback due to mac80211's RCU locking.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: kecsa@kutfo.hit.bme.hu
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/mutex-debug.c')
0 files changed, 0 insertions, 0 deletions