80f6abe0d3
__irq_domain_create() can fail for several reasons. When it fails it returns a NULL pointer and so filters out the exact failure reason. The only user of __irq_domain_create() is irq_domain_instantiate() which can return a PTR_ERR value. On __irq_domain_create() failure, it uses an arbitrary error code. Rather than using this arbitrary error value, make __irq_domain_create() return is own error code and use that one. [ tglx: Remove the pointless ERR_CAST. domain is a valid return pointer ] Signed-off-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240614173232.1184015-11-herve.codina@bootlin.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.