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linux/drivers/base
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Rafael J. Wysocki b55ef8508a PM: runtime: Do not call __rpm_callback() from rpm_idle() 
[ Upstream commit bc80c2e438 ]

Calling __rpm_callback() from rpm_idle() after adding device links
support to the former is a clear mistake.

Not only it causes rpm_idle() to carry out unnecessary actions, but it
is also against the assumption regarding the stability of PM-runtime
status across __rpm_callback() invocations, because rpm_suspend() and
rpm_resume() may run in parallel with __rpm_callback() when it is called
by rpm_idle() and the device's PM-runtime status can be updated by any
of them.

Fixes: 21d5c57b37 ("PM / runtime: Use device links")
Link: https://lore.kernel.org/linux-pm/36aed941-a73e-d937-2721-4f0decd61ce0@quicinc.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2022-12-31 13:14:04 +01:00
..
firmware_loader firmware_loader: use kernel credentials when reading firmware 2022-05-18 10:26:53 +02:00
power PM: runtime: Do not call __rpm_callback() from rpm_idle() 2022-12-31 13:14:04 +01:00
regmap regmap-irq: Fix offset/index mismatch in read_sub_irq_data() 2022-06-29 09:03:25 +02:00
test device property: build kunit tests without structleak plugin 2021-10-06 17:53:42 -06:00
arch_numa.c memblock: introduce saner 'memblock_free_ptr()' interface 2021-09-14 13:23:22 -07:00
arch_topology.c arm64: topology: move store_cpu_topology() to shared code 2022-10-26 12:34:22 +02:00
attribute_container.c driver core: attribute_container: fix W=1 warnings 2021-05-14 13:37:10 +02:00
auxiliary.c Merge 5.14-rc3 into driver-core-next 2021-07-27 09:22:08 +02:00
base.h software nodes: Split software_node_notify() 2021-07-16 19:17:05 +02:00
bus.c driver: base: fix UAF when driver_attach failed 2022-06-14 18:36:09 +02:00
cacheinfo.c cacheinfo: clear cache_leaves(cpu) in free_cache_attributes() 2021-07-21 17:29:40 +02:00
class.c drivers: base: fix some kernel-doc markups 2020-11-09 18:56:49 +01:00
component.c component: do not leave master devres group open after bind 2021-11-18 19:16:08 +01:00
container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
core.c PM: runtime: Redefine pm_runtime_release_supplier() 2022-07-12 16:35:09 +02:00
cpu.c x86/bugs: Report AMD retbleed vulnerability 2022-07-23 12:54:02 +02:00
dd.c driver core: Don't probe devices after bus_type.match() probe deferral 2022-09-08 12:28:07 +02:00
devcoredump.c devcoredump: remove contact information 2021-06-04 15:05:44 +02:00
devres.c devres: Enable trace events 2021-06-15 17:14:36 +02:00
devtmpfs.c devtmpfs regression fix: reconfigure on each mount 2022-01-20 09:13:13 +01:00
driver.c drivers: base: Convert to printk alias functions 2020-07-10 14:16:44 +02:00
firmware.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
hypervisor.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
init.c init: Initialize noop_backing_dev_info early 2022-06-22 14:22:02 +02:00
isa.c bus: Make remove callback return void 2021-07-21 11:53:42 +02:00
Kconfig RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
Makefile devres: Enable trace events 2021-06-15 17:14:36 +02:00
map.c driver: base: Prefer unsigned int to bare use of unsigned 2021-07-21 17:30:09 +02:00
memory.c mm/hwpoison: avoid the impact of hwpoison_filter() return value on mce handler 2022-07-12 16:35:05 +02:00
module.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
node.c drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist 2022-08-31 17:16:35 +02:00
pinctrl.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform-msi.c platform-msi: Add ABI to show msi_irqs of platform devices 2021-08-24 09:16:20 +02:00
platform.c driver core: platform: Remove platform_device_add_properties() 2021-08-18 16:08:11 +02:00
property.c device property: Allow error pointer to be passed to fwnode APIs 2022-06-09 10:22:47 +02:00
soc.c soc: fix comment for freeing soc_dev_attr 2020-12-09 19:46:31 +01:00
swnode.c software node: fix wrong node passed to find nargs_prop 2022-01-27 11:03:46 +01:00
syscore.c syscore: Use pm_pr_dbg() for syscore_{suspend,resume}() 2020-09-08 13:32:06 +02:00
topology.c drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist 2022-08-31 17:16:35 +02:00
trace.c devres: Enable trace events 2021-06-15 17:14:36 +02:00
trace.h devres: Enable trace events 2021-06-15 17:14:36 +02:00
transport_class.c scsi: drivers: base: Propagate errors through the transport component 2020-01-15 22:55:37 -05:00