Sean Christopherson
1ca378f653
Update 'ret' with the return value of _kvm_device_access() prior to asserting that ret is non-zero. In the current code base, the flaw is benign as 'ret' is guaranteed to be -EBUSY from the previous run_vcpu(), which also means that errno==EBUSY prior to _kvm_device_access(), thus the "errno == EFAULT" part of the assert means that a false negative is impossible (unless the kernel is being truly mean and spuriously setting errno=EFAULT while returning success). Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@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.