Dan Williams 41ae9105f5 cxl/port: Fix endpoint refcount leak ... An endpoint can be unregistered via two paths. Either its parent port is unregistered, or the memdev that registered the endpoint is removed. The memdev remove path is responsible for synchronizing against the parent ->remove() event and if the memdev remove path wins, manually trigger unregister_port() via devm_release_action(). Until that race is resolved the memdev remove path holds a reference on the endpoint. If the parent port for the endpoint can not be found that is an indication that the endpoint has already been registered. Be sure to drop the reference in all exit paths from delete_endpoint(). Fixes: 8dd2bc0f8e ("cxl/mem: Add the cxl_mem driver") Link: https://lore.kernel.org/r/164454148209.3429624.12905500880311609053.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2022-02-17 16:50:30 -08:00
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core	cxl/port: Fix endpoint refcount leak	2022-02-17 16:50:30 -08:00
acpi.c	cxl/core/port: Fix / relax decoder target enumeration	2022-02-08 23:15:10 -08:00
cxl.h	cxl/core/port: Add endpoint decoders	2022-02-08 22:57:32 -08:00
cxlmem.h	cxl/mem: Add the cxl_mem driver	2022-02-08 22:57:32 -08:00
cxlpci.h	cxl/pci: Retrieve CXL DVSEC memory info	2022-02-08 22:57:31 -08:00
Kconfig	cxl/mem: Add the cxl_mem driver	2022-02-08 22:57:32 -08:00
Makefile	cxl/mem: Add the cxl_mem driver	2022-02-08 22:57:32 -08:00
mem.c	cxl/mem: Add the cxl_mem driver	2022-02-08 22:57:32 -08:00
pci.c	cxl/pci: Emit device serial number	2022-02-08 22:57:32 -08:00
pmem.c	cxl: Prove CXL locking	2022-02-08 22:57:29 -08:00
port.c	cxl/core/port: Add endpoint decoders	2022-02-08 22:57:32 -08:00