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commitc3dadc19b7upstream. Attempting to transmit rx_done messages after the GLINK instance is being torn down will cause use after free and memory leaks. So cancel the intent_work and free up the pending intents. With this there are no concurrent accessors of the channel left during qcom_glink_native_remove() and there is therefor no need to hold the spinlock during this operation - which would prohibit the use of cancel_work_sync() in the release function. So remove this. Fixes:1d2ea36eea("rpmsg: glink: Add rx done command") Cc: stable@vger.kernel.org Acked-by: Chris Lew <clew@codeaurora.org> Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.