diff options
| author | Prarit Bhargava <prarit@redhat.com> | 2006-12-04 23:50:17 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2006-12-07 10:17:52 +0100 |
| commit | 2548c06b72396e28abdb5dd572ab589c3c22f4b9 (patch) | |
| tree | 775a13b80fdb463da66edf40211aff34f29f354f /drivers/acpi/dock.c | |
| parent | ACPI: dock: Add a docked sysfs file to the dock driver. (diff) | |
| download | linux-2548c06b72396e28abdb5dd572ab589c3c22f4b9.tar.xz linux-2548c06b72396e28abdb5dd572ab589c3c22f4b9.zip | |
ACPI: dock: Fix symbol conflict between acpiphp and dock
Fix bug which will cause acpiphp to not be able to load when dock.ko
cannot load.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/dock.c')
| -rw-r--r-- | drivers/acpi/dock.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index e4c1a4ff4e31..8c6828bee5d9 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -444,6 +444,9 @@ static int dock_in_progress(struct dock_station *ds) */ int register_dock_notifier(struct notifier_block *nb) { + if (!dock_station) + return -ENODEV; + return atomic_notifier_chain_register(&dock_notifier_list, nb); } @@ -455,6 +458,9 @@ EXPORT_SYMBOL_GPL(register_dock_notifier); */ void unregister_dock_notifier(struct notifier_block *nb) { + if (!dock_station) + return; + atomic_notifier_chain_unregister(&dock_notifier_list, nb); } @@ -807,7 +813,7 @@ static int __init dock_init(void) ACPI_UINT32_MAX, find_dock, &num, NULL); if (!num) - return -ENODEV; + printk(KERN_INFO "No dock devices found.\n"); return 0; } |