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d357dd8ad2
A recent bugfix to cxl_pmem_region_alloc() to fix an error-unwind-memleak [1], highlighted a use case for scope-based resource management. Delete the goto for releasing @cxl_region_rwsem, and return error codes directly from error condition paths. The caller, devm_cxl_add_pmem_region(), is no longer given @cxlr_pmem directly it must retrieve it from @cxlr->cxlr_pmem. This retrieval from @cxlr was already in place for @cxlr->cxl_nvb, and converting cxl_pmem_region_alloc() to return an int makes it less awkward to handle no_free_ptr(). Cc: Li Zhijian <lizhijian@fujitsu.com> Reported-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com> Closes: http://lore.kernel.org/r/20240430174540.000039ce@Huawei.com Link: http://lore.kernel.org/r/20240428030748.318985-1-lizhijian@fujitsu.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/171451430965.1147997.15782562063090960666.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.