1. 30 Jun, 2010 3 commits
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  3. 28 Jun, 2010 6 commits
  4. 25 Jun, 2010 11 commits
  5. 24 Jun, 2010 14 commits
  6. 23 Jun, 2010 2 commits
    • Vasanthakumar Thiagarajan's avatar
      ath9k: Fix bug in starting ani · 6c3118e2
      Vasanthakumar Thiagarajan authored
      There are few places where ANI is started without checking
      if it is right to start. This might lead to a case where ani
      timer would be left undeleted and cause improper memory acccess
      during module unload. This bug is clearly exposed with
      paprd support where the driver detects tx hang and does a
      chip reset. During this reset ani is (re)started without checking
      if it needs to be started. This would leave a timer scheduled
      even after all the resources are freed and cause a panic.
      
      This patch introduces a bit in sc_flags to indicate if ani
      needs to be started in sw_scan_start() and ath_reset().
      This would fix the following panic. This issue is easily seen
      with ar9003 + paprd.
      
       BUG: unable to handle kernel paging request at 0000000000003f38
      [<ffffffff81075391>] ? __queue_work+0x41/0x50
      [<ffffffff8106afaa>] run_timer_softirq+0x17a/0x370
      [<ffffffff81088be8>] ? tick_dev_program_event+0x48/0x110
      [<ffffffff81061f69>] __do_softirq+0xb9/0x1f0
      [<ffffffff810ba060>] ? handle_IRQ_event+0x50/0x160
      [<ffffffff8100af5c>] call_softirq+0x1c/0x30
      [<ffffffff8100c9f5>] do_softirq+0x65/0xa0
      [<ffffffff81061e25>] irq_exit+0x85/0x90
      [<ffffffff8155e095>] do_IRQ+0x75/0xf0
      [<ffffffff815570d3>] ret_from_intr+0x0/0x11
      <EOI>
      [<ffffffff812fd67b>] ? acpi_idle_enter_simple+0xe4/0x119
      [<ffffffff812fd674>] ? acpi_idle_enter_simple+0xdd/0x119
      [<ffffffff81441c87>] cpuidle_idle_call+0xa7/0x140
      [<ffffffff81008da3>] cpu_idle+0xb3/0x110
      [<ffffffff81550722>] start_secondary+0x1ee/0x1f5
      Signed-off-by: default avatarVasanthakumar Thiagarajan <vasanth@atheros.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      6c3118e2
    • John W. Linville's avatar