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66db383439
linux/drivers/acpi
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Lv Zheng 66db383439 ACPI / EC: Fix a code coverity issue when QR_EC transactions are failed. 
When the QR_EC transaction fails, the EC_FLAGS_QUERY_PENDING flag prevents
the event handling work queue from being scheduled again.

Though there shouldn't be failed QR_EC transactions, and this gap was
efficiently used for catching and learning the SCI_EVT clearing timing
compliance issues, we need to fix this as we are not fully compatible
with all platforms/Windows to handle SCI_EVT clearing timing correctly.
Fixing this gives the EC driver the chances to recover from a state machine
failure.

So this patch fixes this issue. When nr_pending_queries drops to 0, it
clears EC_FLAGS_QUERY_PENDING at the proper position for different modes in
order to ensure that the SCI_EVT handling can proceed.

In order to be clearer for future ec_event_clearing modes, all checks in
this patch are written in the inclusive style, not the exclusive style.

Cc: 3.16+ <stable@vger.kernel.org> # 3.16+
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-15 14:35:59 +02:00
..
acpica Revert "ACPICA: Permanently set _REV to the value '2'." 2015-05-13 00:44:14 +02:00
apei When checking addresses in APEI action entries for validity, allow 2015-01-15 11:30:57 +01:00
pmic ACPI/PMIC: Fix typo in MODULE_DESCRIPTION in intel_pmic_crc.c 2015-03-26 21:34:51 +01:00
ac.c power_supply: Change ownership from driver to core 2015-03-13 23:15:51 +01:00
acpi_apd.c ACPI: add AMD ACPI2Platform device support for x86 system 2015-02-06 15:42:16 +01:00
acpi_cmos_rtc.c ACPI / RTC: Fix CMOS RTC opregion handler accesses to wrong addresses 2014-09-08 15:38:41 +02:00
acpi_extlog.c ACPI and power management updates for 3.17-rc1 2014-08-06 20:34:19 -07:00
acpi_ipmi.c
acpi_lpat.c ACPI / LPAT: Common table processing functions 2015-01-29 21:02:10 +08:00
acpi_lpss.c ACPI / LPSS: provide con_id for the clkdev 2015-03-10 00:28:43 +01:00
acpi_memhotplug.c ACPICA: Resources: Provide common part for struct acpi_resource_address structures. 2015-01-26 16:09:56 +01:00
acpi_pad.c ACPI/PAD: Use explicit broadcast oneshot control function 2015-04-03 08:44:34 +02:00
acpi_platform.c driver core / ACPI: Represent ACPI companions using fwnode_handle 2015-03-16 23:49:03 +01:00
acpi_pnp.c ACPI / PNP: add two IDs to list for PNPACPI device enumeration 2015-05-04 16:03:12 +02:00
acpi_processor.c ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID 2015-03-26 15:12:51 +00:00
battery.c Power management and ACPI updates for v4.1-rc1 2015-04-14 20:21:54 -07:00
battery.h ACPI / battery: move some ACPI_BATTERY_* definitions to header 2014-03-19 01:57:46 +01:00
bgrt.c
blacklist.c ACPI / blacklist: Disable Vista compatibility for Sony VGN-SR19XN. 2015-03-16 15:14:50 +01:00
bus.c ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi 2015-03-26 15:13:07 +00:00
button.c ACPI / button: Do not propagate wakeup-from-suspend events 2014-07-23 00:59:04 +02:00
cm_sbs.c ACPI: Revert "ACPI: Remove CONFIG_ACPI_PROCFS_POWER and cm_sbsc.c" 2014-05-06 01:52:09 +02:00
container.c ACPI / hotplug: Generate online uevents for ACPI containers 2014-09-21 02:58:18 +02:00
custom_method.c
debugfs.c
device_pm.c ACPI / PM: Remove unneeded nested #ifdef 2015-02-08 23:45:58 +01:00
dock.c driver core / ACPI: Represent ACPI companions using fwnode_handle 2015-03-16 23:49:03 +01:00
ec_sys.c
ec.c ACPI / EC: Fix a code coverity issue when QR_EC transactions are failed. 2015-06-15 14:35:59 +02:00
event.c netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
fan.c ACPI / Fan: Use bus id as the name for non PNP0C0B (Fan) devices 2014-12-11 00:29:02 +01:00
glue.c ACPI: Introduce has_acpi_companion() 2015-03-16 23:49:08 +01:00
gsi.c ACPI: move arm64 GSI IRQ model to generic GSI IRQ layer 2015-03-26 15:13:09 +00:00
hed.c
int340x_thermal.c ACPI/int340x_thermal: enumerate INT3401 for Intel SoC DTS thermal driver 2015-01-06 08:17:14 +08:00
internal.h ACPI / EC: Convert event handling work queue into loop style. 2015-06-15 14:35:59 +02:00
ioapic.c x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug 2015-02-05 15:09:26 +01:00
Kconfig ACPI: move arm64 GSI IRQ model to generic GSI IRQ layer 2015-03-26 15:13:09 +00:00
Makefile ACPI: move arm64 GSI IRQ model to generic GSI IRQ layer 2015-03-26 15:13:09 +00:00
numa.c ACPI / table: remove duplicate NULL check for the handler of acpi_table_parse() 2015-02-06 01:34:47 +01:00
nvs.c ACPI: Clean up acpi_os_map/unmap_memory() to eliminate __iomem. 2014-05-27 18:13:08 +02:00
osl.c ACPI / init: Fix the ordering of acpi_reserve_resources() 2015-05-07 21:19:39 +02:00
pci_irq.c Revert "x86/PCI: Refine the way to release PCI IRQ resources" 2015-03-20 14:56:19 +01:00
pci_link.c ACPI: Remove duplicate definitions of PREFIX 2014-03-19 02:01:57 +01:00
pci_root.c PCI: Don't clear ASPM bits when the FADT declares it's unsupported 2015-04-09 14:20:11 -05:00
pci_slot.c
power.c ACPI: Remove duplicate definitions of PREFIX 2014-03-19 02:01:57 +01:00
proc.c
processor_core.c ACPI / processor: Make it possible to get CPU hardware ID via GICC 2015-03-26 15:13:07 +00:00
processor_driver.c ACPI / processor: Make acpi_cpu_soft_notify() process CPU FROZEN events 2014-08-06 22:22:03 +02:00
processor_idle.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-04-13 11:08:28 -07:00
processor_pdc.c ACPI / processor: Introduce ARCH_MIGHT_HAVE_ACPI_PDC 2014-07-21 13:50:58 +02:00
processor_perflib.c ACPI / processor: use acpi_evaluate_ost() to replace open-coded version 2014-02-21 00:27:47 +01:00
processor_thermal.c
processor_throttling.c ACPI / processor: Rework processor throttling with work_on_cpu() 2014-02-27 00:21:05 +01:00
property.c ACPI / property: Drop size_prop from acpi_dev_get_property_reference() 2014-11-05 20:48:06 +01:00
reboot.c
resource.c x86/PCI/ACPI: Make all resources except [io 0xcf8-0xcff] available on PCI bus 2015-04-30 22:17:34 +02:00
sbs.c ACPI / SBS: Enable battery manager when present 2015-04-29 00:04:29 +02:00
sbshc.c ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook 2015-04-30 23:18:11 +02:00
sbshc.h
scan.c ACPI / scan: Add a scan handler for PRP0001 2015-04-24 02:18:01 +02:00
sleep.c ACPI / PM: Enable all wakeup GPEs in suspend-to-idle 2015-03-30 01:52:02 +02:00
sleep.h ACPI / sleep: Drop acpi_suspend() which is not used 2015-03-18 12:53:21 +01:00
sysfs.c ACPI / sysfs: Treat the count field of counter_show() as unsigned 2015-03-10 01:03:30 +01:00
tables.c ACPI / table: Print GIC information when MADT is parsed 2015-03-25 11:49:31 +00:00
thermal.c Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h 2014-10-10 13:57:15 +08:00
utils.c Merge branches 'acpi-scan', 'acpi-utils' and 'acpi-pm' 2014-12-18 18:42:56 +01:00
video_detect.c ACPI / video: Add force native backlight quirk for Lenovo Ideapad Z570 2015-03-22 22:02:51 +01:00
video.c ACPI / video: Add force native backlight quirk for Lenovo Ideapad Z570 2015-03-22 22:02:51 +01:00
wakeup.c