tree e530148d5def57faaef318e6d73572c221256fcc
parent 67fe63b0715ccfaefa0af8a6e705c5470ee5cada
author Bjorn Helgaas <bjorn.helgaas@hp.com> 1262894336 -0700
committer Dave Airlie <airlied@redhat.com> 1263186542 +1000

agp/hp: fail gracefully if we don't find an IOC

Bail out if we don't find an enclosing IOC.  Previously, if we didn't
find one, we tried to set things up using garbage for the SBA/IOC register
address, which causes a crash.

This crash only happens if firmware supplies a defective ACPI namespace, so
it doesn't fix any problems in the field.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>