db3568fd80
For architectures such as s390 and powerpc that do not use irq domains for MSIs, dev->msi.domain is always NULL, so the per-device, per-bus MSI domain is also guaranteed to be NULL. So checking one without checking the other is bound to result in a splat, followed by a memory leak as we don't free the MSI descriptors. Add the missing check. Reported-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/e570e70d-19bc-101b-0481-ff9a3cab3504@linux.ibm.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 Restructured Text 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.