[PATCH v2 0/4] cxl/mem: Fix memdev device setup

Dan Williams
2021-03-30T02:48:22Z

Changes since v1: [1]
- switch percpu_ref to srcu (Jason)
- introduce cxl_memdev_alloc() (Jason)

[1]: http://lore.kernel.org/r/161661970558.1721612.10441826898835759137.stgit@dwillia2-desk3.amr.corp.intel.com

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A small collection of fixes mostly inspired by Jason's recognition of
dev_set_name() error handling mistakes on other driver review.

dev_set_name() can fail and although device_add() might catch it that's
not a reliable assumption. While fixing that I noticed that the unwind
handling for cdev_device_add() failures leaked the device name.

The sysfs_emit() fixup and unpublishing of device power management files
are just sanity cleanups.

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Dan Williams (4):
cxl/mem: Use sysfs_emit() for attribute show routines
cxl/mem: Fix synchronization mechanism for device removal vs ioctl operations
cxl/mem: Do not rely on device_add() side effects for dev_set_name() failures
cxl/mem: Disable cxl device power management

drivers/cxl/mem.c | 127 +++++++++++++++++++++++++++++++----------------------
1 file changed, 75 insertions(+), 52 deletions(-)

base-commit: a38fd8748464831584a19438cbb3082b5a2dab15