1. 13 Feb, 2002 35 commits
  2. 12 Feb, 2002 5 commits
    • Ingo Molnar's avatar
      a cleanup and a bugfix in the preemptive kernel: · 9bf40b14
      Ingo Molnar authored
      - the PREEMPT_ACTIVE trick is not needed
      
      - schedule() should check for need_resched, we might miss a
        reschedule otherwise.
      
      the cleanup also fixes the bug. The only reason why i kept
      preempt_schedule() was to fix up p->state to TASK_RUNNING,
      to make it possible to preempt from places that mark the
      task TASK_UNINTERRUPTIBLE before adding the task to a waitqueue,
      and thus a preemption in that small window could cause the
      task to be removed from the runqueue erroneously.
      9bf40b14
    • Ingo Molnar's avatar
    • Ingo Molnar's avatar
    • Martin Diehl's avatar
      [PATCH] usb_set_interface: correct toggle reset · 944b9581
      Martin Diehl authored
        
      this is a patch to prevent usb_set_interface() from erroneously resetting
      the toggles for all endpoints instead of only the affected ones from the
      requested interface/altsetting. I've also added some missing parentheses
      to related macros in usb.h as I prefered not to take special care for
      nasty side-effects ;-)
        
      Patch below was created against 2.4.18-pre9 (with some lines of offset it
      applies to 2.5.4-pre5 as well).
        
      Tested in multi-interface configuration to provide evidence it:
      * correctly identifies the affected endpoints and resets the toggles
      * doesn't touch endpoints from other interfaces
      * provides correct handling of shared EP0
      * solves an issue I had with 2.4.18-pre9 where setting one interface
        occasionally caused transfers on other interface to hang due to lost
        toggle synchronisation
      
      Despite being a pure bugfix, well localized and (IMHO) pretty obviously
      correct wrt. USB-spec, I'd like to suggest including this in early
      2.4.19-pre. Just in case some existing driver would somehow workaround
      the currently wrong behavior and might break with this fix. And it's
      not very urgent right now, as we are probably close to 2.4.18-rc1.
        
      Regards,
      Martin
      944b9581
    • Vojtech Pavlik's avatar
      usb hid driver: · bb16c313
      Vojtech Pavlik authored
      	- patch to fix bug where urbs were freed too soon.
      bb16c313