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1cd0787f08
In an error path where the submit is free'd without the job being run,
the hw_fence pointer is simply a kzalloc'd block of memory. In this
case we should just kfree() it, rather than trying to decrement it's
reference count. Fortunately we can tell that this is the case by
checking for a zero refcount, since if the job was run, the submit would
be holding a reference to the hw_fence.
Fixes: f94e6a51e1 ("drm/msm: Pre-allocate hw_fence")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/547088/
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.