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e01afe36df
LKP considered variable 'ret' in vhost_vdpa_setup_vq_irq() as a unused variable, so suggest we remove it. Actually it stores return value of irq_bypass_register_producer(), but we did not check it, we should handle the failure case. This commit will print a message if irq bypass register producer fail, in this case, vqs still remain functional. Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20201023104046.404794-1-lingshan.zhu@intel.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.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.