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authorStanislaw Gruszka <sgruszka@redhat.com>2011-06-02 18:17:15 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-06-03 14:22:06 -0400
commit6f213ff1919fab6f8244ceae55631b5d6ef750a7 (patch)
treeed2f6312721b9391c85dfcdc6f44a0a5dd208cfb /Documentation/rapidio
parenta99168eece601d2a79ecfcb968ce226f2f30cf98 (diff)
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iwlagn: fix channel switch locking
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@intel.com> 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@kernel.org # 2.6.36+ Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'Documentation/rapidio')
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