From: Vivek Natarajan Date: Thu, 27 Jan 2011 09:15:10 +0000 (+0530) Subject: ath9k: Fix a locking related issue. X-Git-Tag: 2.1b_release~5021^2~417^2~40 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bdd62c067d596e2469b243af9887f46e5d47d971;p=platform%2Fkernel%2Fkernel-mfld-blackbay.git ath9k: Fix a locking related issue. Spin_lock has been tried to be acquired twice from ath9k_tasklet to ath_reset which resulted in a machine freeze. Signed-off-by: Vivek Natarajan Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 10a3dbe..d211aa7 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -563,8 +563,11 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, rcu_read_unlock(); - if (needreset) + if (needreset) { + spin_unlock_bh(&sc->sc_pcu_lock); ath_reset(sc, false); + spin_lock_bh(&sc->sc_pcu_lock); + } } static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,