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commitf89672cc36upstream. Check count for 0, to avoid a potential underflow. Make the check the same as the one in rproc_recovery_write(). Fixes:3afdc59e43("remoteproc: Add coredump debugfs entry") Signed-off-by: Alistair Delva <adelva@google.com> Cc: Rishabh Bhatnagar <rishabhb@codeaurora.org> Cc: stable@vger.kernel.org Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Sibi Sankar <sibis@codeaurora.org> Cc: linux-remoteproc@vger.kernel.org Cc: kernel-team@android.com Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220119232139.1125908-1-adelva@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.