Rafael J. Wysocki d007150b4e drivers: base: Fix device link removal ... commit 80dd33cf72 upstream. When device_link_free() drops references to the supplier and consumer devices of the device link going away and the reference being dropped turns out to be the last one for any of those device objects, its ->release callback will be invoked and it may sleep which goes against the SRCU callback execution requirements. To address this issue, make the device link removal code carry out the device_link_free() actions preceded by SRCU synchronization from a separate work item (the "long" workqueue is used for that, because it does not matter when the device link memory is released and it may take time to get to that point) instead of using SRCU callbacks. While at it, make the code work analogously when SRCU is not enabled to reduce the differences between the SRCU and non-SRCU cases. Fixes: 843e600b8a ("driver core: Fix sleeping in invalid context during device link deletion") Cc: stable <stable@vger.kernel.org> Reported-by: chenxiang (M) <chenxiang66@hisilicon.com> Tested-by: chenxiang (M) <chenxiang66@hisilicon.com> Reviewed-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/5722787.lOV4Wx5bFT@kreacher Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-06-03 09:00:34 +02:00
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firmware_loader
power	PM: runtime: Fix unpaired parent child_count for force_resume	2021-05-19 10:12:51 +02:00
regmap
test
arch_topology.c
attribute_container.c
base.h
bus.c
cacheinfo.c
class.c
component.c
container.c
core.c	drivers: base: Fix device link removal	2021-06-03 09:00:34 +02:00
cpu.c
dd.c
devcoredump.c
devres.c
devtmpfs.c
driver.c
firmware.c
hypervisor.c
init.c
isa.c
Kconfig
Makefile
map.c
memory.c
module.c
node.c	node: fix device cleanups in error handling code	2021-05-14 09:50:19 +02:00
pinctrl.c
platform-msi.c
platform.c
property.c
soc.c
swnode.c
syscore.c
topology.c
transport_class.c