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[ Upstream commit c9ca9756f376f51f985130a0e599d956065d4c44 ] Commit1bdc85550a("crypto: qat - fix concurrency issue when device state changes") introduced the function adf_dev_down() which wraps the functions adf_dev_stop() and adf_dev_shutdown(). In a subsequent change, the sequence adf_dev_stop() followed by adf_dev_shutdown() was then replaced across the driver with just a call to the function adf_dev_down(). The functions adf_dev_stop() and adf_dev_shutdown() are called in error paths to stop the accelerator and free up resources and can be called even if the counterparts adf_dev_init() and adf_dev_start() did not complete successfully. However, the implementation of adf_dev_down() prevents the stop/shutdown sequence if the device is found already down. For example, if adf_dev_init() fails, the device status is not set as started and therefore a call to adf_dev_down() won't be calling adf_dev_shutdown() to undo what adf_dev_init() did. Do not check if a device is started in adf_dev_down() but do the equivalent check in adf_sysfs.c when handling a DEV_DOWN command from the user. Fixes:2b60f79c7b("crypto: qat - replace state machine calls") Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Reviewed-by: Adam Guerin <adam.guerin@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@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.