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In wait for CS IOCTL code, the driver resets the incoming args structure before returning to the user, regardless of the return value of the IOCTL. In case the IOCTL returns EINTR, resetting the args will result in error in case the userspace will repeat the ioctl call immediately (which is the behavior in the hl-thunk userspace library). The solution is to reset the args only if the driver returns success (0) as a return value for the IOCTL. Signed-off-by: Rajaravi Krishna Katta <rkatta@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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.