AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/base
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Rafael J. Wysocki c6e5800bdf PM: runtime: Update device status before letting suppliers suspend 
commit 44cc89f764646b2f1f2ea5d1a08b230131707851 upstream.

Because the PM-runtime status of the device is not updated in
__rpm_callback(), attempts to suspend the suppliers of the given
device triggered by rpm_put_suppliers() called by it may fail.

Fix this by making __rpm_callback() update the device's status to
RPM_SUSPENDED before calling rpm_put_suppliers() if the current
status of the device is RPM_SUSPENDING and the callback just invoked
by it has returned 0 (success).

While at it, modify the code in __rpm_callback() to always check
the device's PM-runtime status under its PM lock.

Link: https://lore.kernel.org/linux-pm/CAPDyKFqm06KDw_p8WXsM4dijDbho4bb6T4k50UqqvR1_COsp8g@mail.gmail.com/
Fixes: 21d5c57b37 ("PM / runtime: Use device links")
Reported-by: Elaine Zhang <zhangqing@rock-chips.com>
Diagnosed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Elaine Zhang <zhangiqng@rock-chips.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: 4.10+ <stable@vger.kernel.org> # 4.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-09 11:11:12 +01:00
..
firmware_loader Char/Misc driver patches for 5.10-rc1 2020-10-15 10:01:51 -07:00
power PM: runtime: Update device status before letting suppliers suspend 2021-03-09 11:11:12 +01:00
regmap regmap: sdw: use _no_pm functions in regmap_read/write 2021-03-04 11:38:15 +01:00
test
arch_topology.c Driver Core patches for 5.10-rc1 2020-10-14 16:09:32 -07:00
attribute_container.c
base.h driver core: add deferring probe reason to devices_deferred property 2020-07-30 09:03:43 +02:00
bus.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
cacheinfo.c drivers core: Use sysfs_emit for shared_cpu_map_show and shared_cpu_list_show 2020-10-02 13:24:40 +02:00
class.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
component.c
container.c
core.c driver core: Extend device_is_dependent() 2021-01-27 11:55:18 +01:00
cpu.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
dd.c drivers core: Free dma_range_map when driver probe failed 2021-01-27 11:55:18 +01:00
devcoredump.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
devres.c devres: provide devm_krealloc() 2020-09-08 13:32:06 +02:00
devtmpfs.c init: add an init_chroot helper 2020-07-31 08:17:52 +02:00
driver.c drivers: base: Convert to printk alias functions 2020-07-10 14:16:44 +02:00
firmware.c
hypervisor.c
init.c
isa.c
Kconfig
Makefile device property: Move fwnode_connection_find_match() under drivers/base/property.c 2020-09-08 13:32:06 +02:00
map.c
memory.c mm/memory_hotplug: prepare passing flags to add_memory() and friends 2020-10-16 11:11:18 -07:00
module.c
node.c mm: don't panic when links can't be created in sysfs 2020-10-16 11:11:18 -07:00
pinctrl.c
platform-msi.c
platform.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
property.c device property: Move fwnode_connection_find_match() under drivers/base/property.c 2020-09-08 13:32:06 +02:00
soc.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
swnode.c media: software_node: Fix refcounts in software_node_get_next_child() 2021-03-04 11:37:42 +01:00
syscore.c syscore: Use pm_pr_dbg() for syscore_{suspend,resume}() 2020-09-08 13:32:06 +02:00
topology.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
transport_class.c