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In __devm_cxl_add_port(), there is a 'goto' to call put_device() for the error cases between device_initialize() and device_add() to dereference the 'struct device' of a new cxl_port. The 'goto' pattern in the case can be removed by refactoring. Introducing a new function called cxl_port_add() which is used to add the 'struct device' of a new cxl_port to device hierarchy, moving the functions needing the help of the 'goto' into cxl_port_add(), and using a scoped-based resource management __free() to drop the open coded put_device() and the 'goto' for the error cases. Suggested-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Li Ming <ming4.li@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huwaei.com> Link: https://patch.msgid.link/20240830013138.2256244-3-ming4.li@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.