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485534bfcc
Don't use tlb as some flag to indicate if protection_domain_alloc() completed. Have protection_domain_alloc() unwind itself in the normal kernel style and require protection_domain_free() only be called on successful results of protection_domain_alloc(). Also, the amd_iommu_domain_free() op is never called by the core code with a NULL argument, so remove all the NULL tests as well. Reviewed-by: Vasant Hegde <vasant.hegde@amd.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/10-v2-831cdc4d00f3+1a315-amd_iopgtbl_jgg@nvidia.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
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.