Sudeep Holla 7bd804a05e PM / Domains: defer dev_pm_domain_set() until genpd->attach_dev succeeds if present ...

commit 975e83cfb8 upstream.

If the genpd->attach_dev or genpd->power_on fails, genpd_dev_pm_attach
may return -EPROBE_DEFER initially. However genpd_alloc_dev_data sets
the PM domain for the device unconditionally.

When subsequent attempts are made to call genpd_dev_pm_attach, it may
return -EEXISTS checking dev->pm_domain without re-attempting to call
attach_dev or power_on.

platform_drv_probe then attempts to call drv->probe as the return value
-EEXIST != -EPROBE_DEFER, which may end up in a situation where the
device is accessed without it's power domain switched on.

Fixes: f104e1e5ef (PM / Domains: Re-order initialization of generic_pm_domain_data)
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-07-27 15:08:08 -07:00

..

power

PM / Domains: defer dev_pm_domain_set() until genpd->attach_dev succeeds if present

2017-07-27 15:08:08 -07:00

regmap

Merge remote-tracking branches 'regmap/topic/core' and 'regmap/topic/debugfs' into regmap-next

2016-10-04 05:17:12 +02:00

attribute_container.c

attribute_container: Fix typo

2016-08-31 15:13:56 +02:00

base.h

PM / sleep: prohibit devices probing during suspend/hibernation

2015-11-30 14:47:22 +01:00

bus.c

driver core: bus: use to_subsys_private and to_device_private_bus

2016-02-09 17:25:27 -08:00

cacheinfo.c

cpu/cacheinfo: Fix teardown path

2015-09-17 06:06:54 -07:00

class.c

class_find_device: fix reference to argument "match"

2015-09-29 15:23:14 +02:00

component.c

Merge 4.5-rc4 into driver-core-next

2016-02-14 14:29:55 -08:00

container.c

ACPI / hotplug / driver core: Handle containers in a special way

2013-12-29 15:25:48 +01:00

core.c

Add "shutdown" to "struct class".

2017-07-15 12:16:11 +02:00

cpu.c

cpu: clean up register_cpu func

2016-08-31 15:19:55 +02:00

dd.c

driver core: fix smatch warning on dev->bus check

2016-10-31 09:15:22 -06:00

devcoredump.c

devcoredump: add scatterlist support

2016-04-15 11:20:32 -07:00

devres.c

devm: make allocations numa aware by default

2015-10-09 17:00:33 -04:00

devtmpfs.c

wrappers for ->i_mutex access

2016-01-22 18:04:28 -05:00

dma-coherent.c

drivers: dma-coherent: Move spinlock in dma_alloc_from_coherent()

2016-09-28 17:53:16 +02:00

dma-contiguous.c

Merge tag 'driver-core-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2015-11-04 21:50:37 -08:00

dma-mapping.c

drivers/base dmam_declare_coherent_memory leaks

2016-08-31 15:19:55 +02:00

driver.c

driver core: add missing blank line after declaration

2015-03-25 14:36:30 +01:00

firmware_class.c

firmware: fix usermode helper fallback loading

2017-01-09 08:32:22 +01:00

firmware.c

firmware: change firmware_kset to firmware_kobj

2008-01-24 20:40:23 -08:00

hypervisor.c

drivers/base: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required.

2011-10-31 19:31:38 -04:00

init.c

drivers: of/base: move of_init to driver_init

2015-05-26 19:55:56 -07:00

isa.c

isa: Call isa_bus_init before dependent ISA bus drivers register

2016-06-17 20:47:11 -07:00

Kconfig

driver core: Make Kconfig text for DEBUG_TEST_DRIVER_REMOVE stronger

2016-10-27 17:47:12 +02:00

Makefile

isa: Allow ISA-style drivers on modern systems

2016-06-17 20:21:12 -07:00

map.c

drivers: base: map: Use kmalloc_array instead of kmalloc

2015-03-25 14:35:08 +01:00

memory.c

base/memory, hotplug: fix a kernel oops in show_valid_zones()

2017-02-09 08:08:28 +01:00

module.c

base: make module_create_drivers_dir race-free

2016-06-15 19:21:31 -07:00

node.c

treewide: replace obsolete _refok by __ref

2016-08-02 17:31:41 -04:00

pinctrl.c

driver: base: pinctrl: return error from pinctrl_bind_pins()

2016-09-13 23:02:59 +02:00

platform-msi.c

genirq/msi: Add cpumask allocation to alloc_msi_entry

2016-09-14 22:11:08 +02:00

platform.c

driver core: platform: fix race condition with driver_override

2017-07-12 15:01:02 +02:00

property.c

device property: Add function to search for named child of device

2016-06-26 12:39:03 +01:00

soc.c

base: soc: make it explicitly non-modular

2016-08-31 15:13:56 +02:00

syscore.c

genirq: Simplify wakeup mechanism

2014-09-01 13:48:59 +02:00

topology.c

topology/sysfs: provide drawer id and siblings attributes

2016-06-13 15:58:27 +02:00

transport_class.c

drivers/base: transport_class explicitly requires EXPORT_SYMBOL

2011-10-31 19:31:15 -04:00