bay: exit if notify handler cannot be installed
authorHolger Macht <hmacht@suse.de>
Mon, 9 Jun 2008 23:22:24 +0000 (16:22 -0700)
committerLen Brown <len.brown@intel.com>
Wed, 11 Jun 2008 23:13:47 +0000 (19:13 -0400)
commit7efd52a407bed6a2b02015b8ebbff7beba155392
treec4cd8287c5434236465e3de7c91ed4957bd1c290
parent1fdd68608614cd1e951fd93873fe5597374e8c54
bay: exit if notify handler cannot be installed

If acpi_install_notify_handler() for a bay device fails, the bay driver is
superfluous.  Most likely, another driver (like libata) is already caring
about this device anyway.  Furthermore,
register_hotplug_dock_device(acpi_handle) from the dock driver must not be
called twice with the same handler.  This would result in an endless loop
consuming 100% of CPU.  So clean up and exit.

Signed-off-by: Holger Macht <hmacht@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/acpi/bay.c