cvs commit: src/sys/i386/bios apm.c

[Julian Elischer]

julian      2007-11-14 05:43:55 UTC

  FreeBSD src repository

  Modified files:
    sys/i386/bios        apm.c 
  Log:
  Apply the same sort of locking done in
     sys/dev/acpica/acpi.c rev 1.196 a while ago:
  
  Grab Giant around calls to DEVICE_SUSPEND/RESUME in
  acpi_SetSleepState().
  If we are resuming non-MPSAFE drivers, they need Giant held for them.
  This may fix some obscure suspend/resume problems.  It has fixed keyrate
  setting problems that were triggered by cardbus (MPSAFE) changing the
  ordering for syscons resume (non-MPSAFE).  Also, add some asserts that
  Giant is held in our suspend/resume and shutdown methods.
  
  Submitted by: Marko Zec
  
  Revision  Changes    Path
  1.149     +10 -0     src/sys/i386/bios/apm.c