On Thu, 2011-06-02 at 09:17 -0700, Stanislaw Gruszka wrote: > We use priv->mutex to avoid race conditions between iwl_chswitch_done() > and iwlagn_mac_channel_switch(), when marking channel switch in > progress. But iwl_chswitch_done() can be called in atomic context > from iwl_rx_csa() or with mutex already taken from iwlagn_commit_rxon(). > > These bugs were introduced by: > > commit 79d07325502e73508f917475bc1617b60979dd94 > Author: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx> > Date: Thu May 6 08:54:11 2010 -0700 > > iwlwifi: support channel switch offload in driver > > To fix remove mutex from iwl_chswitch_done() and use atomic bitops for > marking channel switch pending. > > Also remove iwl2030_hw_channel_switch() since 2000 series adapters are > 2.4GHz only devices. > > Cc: stable@xxxxxxxxxx # 2.6.36+ > Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx> Acked-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx> > --- -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
