Zhao Yakui 86e437f077 ACPI: Add the reference count to avoid unloading ACPI video bus twice ... Sometimes both acpi video and i915 driver are compiled as modules. And there exists the strict dependency between the two drivers. The acpi video bus will be unloaded in course of unloading the i915 driver. If we unload the acpi video driver, then the kernel oops will be triggered. Add the reference count to avoid unloading the ACPI video bus twice. The reference count should be checked before unregistering the acpi video bus. If the reference count is already zero, it won't unregister it again. And after the acpi video bus is already unregistered, the reference count will be set to zero. http://bugzilla.kernel.org/show_bug.cgi?id=13396 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>		2009-06-23 23:38:41 -04:00
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acpica	Merge branches 'release', 'bugzilla-13032', 'bugzilla-13041+', 'bugzilla-13121', 'bugzilla-13165', 'bugzilla-13243', 'bugzilla-13259', 'resume-sci-en-regression', 'thermal-regression', 'tsc-regression' and 'asus-2.6.30' into release	2009-05-16 01:55:59 -04:00
ac.c	proc 2/2: remove struct proc_dir_entry::owner	2009-03-31 01:14:44 +04:00
acpi_memhotplug.c
battery.c	Revert "ACPI battery: fix async boot oops"	2009-04-11 12:45:20 -07:00
blacklist.c
bus.c	ACPI: power: update error message	2009-05-08 00:07:30 -04:00
button.c	ACPI: button: remove control method/fixed hardware distinctions	2009-04-11 00:36:41 -04:00
cm_sbs.c
container.c	ACPI: add missing KERN_* constants to printks	2009-02-07 00:29:32 -05:00
debug.c	Merge branch 'acpi-modparam' into release	2009-04-05 01:45:50 -04:00
dock.c	Merge branch 'linus' into release	2009-04-05 02:14:15 -04:00
ec.c	ACPI: EC: Fix ACPI EC resume non-query interrupt message	2009-04-23 23:56:57 -04:00
event.c	netlink: change return-value logic of netlink_broadcast()	2009-02-05 23:56:36 -08:00
fan.c	Merge branch 'linus' into release	2009-04-05 02:14:15 -04:00
glue.c	ACPI: call init_acpi_device_notify() explicitly rather than as initcall	2009-03-27 12:51:16 -04:00
internal.h	ACPI: call acpi_wakeup_device_init() explicitly rather than as initcall	2009-03-27 12:51:31 -04:00
Kconfig	ACPI: update Kconfig help texts (no functional changes)	2009-03-17 02:06:04 -04:00
Makefile	Merge branch 'async-battery' into release	2009-04-05 01:48:46 -04:00
numa.c	x86, ACPI: add support for x2apic ACPI extensions	2009-04-03 20:08:12 -04:00
osl.c	ACPI: add /sys/firmware/acpi/interrupts/sci_not counter	2009-04-21 00:35:47 -04:00
pci_bind.c	PCI/ACPI: fix wrong ref count handling in acpi_pci_bind()	2009-05-27 17:53:07 -04:00
pci_irq.c	Merge branch 'misc' into release	2009-04-05 01:52:07 -04:00
pci_link.c	ACPI: pci_link: simplify list of link devices	2009-03-17 01:53:29 -04:00
pci_root.c	PCI/ACPI: rename pci_osc_control_set()	2009-03-19 19:29:33 -07:00
pci_slot.c	PCI: pci_slot: grab refcount on slot's bus	2009-04-06 11:31:14 -07:00
power.c	Merge branch 'acpi-modparam' into release	2009-04-05 01:45:50 -04:00
proc.c	ACPI: convert acpi_device_lock spinlock to mutex	2009-04-07 00:02:40 -04:00
processor_core.c	cpumask: alloc zeroed cpumask for static cpumask_var_ts	2009-06-09 22:30:27 +09:30
processor_idle.c	cpuidle: fix AMD C1E suspend hang	2009-05-26 23:45:33 -04:00
processor_perflib.c	ACPI: sanity check _PSS frequency to prevent cpufreq crash	2009-05-29 20:45:58 -04:00
processor_thermal.c	Merge branch 'constify' into release	2009-04-05 01:51:16 -04:00
processor_throttling.c	ACPI processor: remove spurious newline from warning message	2009-05-29 21:26:26 -04:00
reboot.c
sbs.c	Merge branch 'linus' into release	2009-04-05 02:14:15 -04:00
sbshc.c
sbshc.h
scan.c	ACPI: delete acpi_device.g_list	2009-04-07 02:02:15 -04:00
sleep.c	Merge branch 'bugzilla-13041' into release	2009-04-24 01:35:24 -04:00
sleep.h	ACPI: convert acpi_device_lock spinlock to mutex	2009-04-07 00:02:40 -04:00
system.c	ACPI: add /sys/firmware/acpi/interrupts/sci_not counter	2009-04-21 00:35:47 -04:00
tables.c	Merge branch 'linus' into release	2009-04-05 02:14:15 -04:00
thermal.c	thermal: Fix polling frequency for systems without passive cooling	2009-04-18 01:05:23 -04:00
utils.c
video_detect.c	ACPI video: add a warning message if _BQC is not found	2009-03-27 22:37:22 -04:00
video.c	ACPI: Add the reference count to avoid unloading ACPI video bus twice	2009-06-23 23:38:41 -04:00
wakeup.c	ACPI: convert acpi_device_lock spinlock to mutex	2009-04-07 00:02:40 -04:00