diff options
| author | Ben Widawsky <[email protected]> | 2021-08-02 10:30:05 -0700 |
|---|---|---|
| committer | Dan Williams <[email protected]> | 2021-08-06 08:22:54 -0700 |
| commit | 3d135db510240fefd79da46181493d3e3b415f6b (patch) | |
| tree | 037ec26d21c8fee3c90323c3ddd628a829032d8e /lib/memory-notifier-error-inject.c | |
| parent | 9cc238c7a526dba9ee8c210fa2828886fc65db66 (diff) | |
cxl/core: Move memdev management to core
The motivation for moving cxl_memdev allocation to the core (beyond
better file organization of sysfs attributes in core/ and drivers in
cxl/), is that device lifetime is longer than module lifetime. The cxl_pci
module should be free to come and go without needing to coordinate with
devices that need the text associated with cxl_memdev_release() to stay
resident. The move fixes a use after free bug when looping driver
load / unload with CONFIG_DEBUG_KOBJECT_RELEASE=y.
Another motivation for disconnecting cxl_memdev creation from cxl_pci is
to enable other drivers, like a unit test driver, to registers memdevs.
Fixes: b39cb1052a5c ("cxl/mem: Register CXL memX devices")
Signed-off-by: Ben Widawsky <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Link: https://lore.kernel.org/r/162792540495.368511.9748638751088219595.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <[email protected]>
Diffstat (limited to 'lib/memory-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions