diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2011-01-25 14:08:40 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-01-27 16:41:08 -0500 |
| commit | 203043f579ece44bb30291442cd56332651dd37d (patch) | |
| tree | aa219eadbff45abf09011f595fa27febb6152ee7 /drivers/net/wireless/ath/ath9k/init.c | |
| parent | c9234a662e38309d6fe272ad80e6cdb8d24654f0 (diff) | |
ath9k: fix race conditions when stop device
We do not kill any scheduled tasklets when stopping device, that may
cause usage of resources after free. Moreover we enable interrupts
in tasklet function, so we could potentially end with interrupts
enabled when driver is not ready to receive them.
I think patch should fix Ben's kernel crash from:
http://marc.info/?l=linux-wireless&m=129438358921501&w=2
Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/init.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 767d8b86f1e..b3254a3484a 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -598,8 +598,6 @@ err_btcoex: err_queues: ath9k_hw_deinit(ah); err_hw: - tasklet_kill(&sc->intr_tq); - tasklet_kill(&sc->bcon_tasklet); kfree(ah); sc->sc_ah = NULL; @@ -807,9 +805,6 @@ static void ath9k_deinit_softc(struct ath_softc *sc) ath9k_hw_deinit(sc->sc_ah); - tasklet_kill(&sc->intr_tq); - tasklet_kill(&sc->bcon_tasklet); - kfree(sc->sc_ah); sc->sc_ah = NULL; } |