On Thu, Nov 08, 2007 at 01:09:00PM +0900, Tejun Heo wrote: > Port / host stop calls used to be made from ata_host_release() which > is called after all hardware resources acquired after host allocation > are released. This is wrong as port and host stop routines often > access the hardware. > > Add separate devres for port / host stop which is invoked right after > IRQ is released but with all other hardware resources intact. The > devres is added iff ->host_stop and/or ->port_stop exist. > > This problem has been spotted by Mark Lord. > > Signed-off-by: Tejun Heo <[EMAIL PROTECTED]> > Cc: Mark Lord <[EMAIL PROTECTED]> > --- > Jeff, this really needs to get into 2.6.24. Although it hasn't caused > any real problem (yet), ahci is one of the affected drivers and it's > poking released iomems in its port_ops.
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