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[ Upstream commit6a1d4c7976] The irq_of_parse_and_map() function returns zero on error. It never returns negative error codes. Fix the check. Fixes:a689554ba6("drm/msm: Initial add DSI connector support") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Patchwork: https://patchwork.freedesktop.org/patch/557715/ Link: https://lore.kernel.org/r/4f3c5c98-04f7-43f7-900f-5d7482c83eef@moroto.mountain Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> 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.