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(parent: d8e2352) | patch
b43: work around a locking issue in ->set_tim()
authorFelix Fietkau <nbd@openwrt.org>
Sat, 7 Nov 2009 17:37:37 +0000 (18:37 +0100)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 10 Nov 2009 21:21:12 +0000 (16:21 -0500)
commit8f611288c8db0c89447856c4c8970bb7ee535448
tree237d62b556e15750acb589b7ad7db25eb873fcd5tree | snapshot
parentd8e235227899474976302cf272e5c2b756eb32decommit | diff
b43: work around a locking issue in ->set_tim()

ops->set_tim() must be atomic, so b43 trying to acquire a mutex leads
to a kernel crash. This patch trades an easy to trigger crash in AP
mode for an unlikely race condition. According to Michael, the real
fix would be to allow set_tim() to sleep, since b43 is not the only
driver that needs to sleep in all callbacks.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/b43/main.c diff | blob | history
Domain: System / Uncategorized;