commit 599d41fb8ea8bd2a99ca9525dd69405020e43dda upstream. APR should not fail if the service device tree node does not have the qcom,protection-domain property, since this functionality does not exist on older platforms such as MSM8916 and MSM8996. Ignore -EINVAL (returned when the property does not exist) to fix a regression on 6.2-rc1 that prevents audio from working: qcom,apr remoteproc0:smd-edge.apr_audio_svc.-1.-1: Failed to read second value of qcom,protection-domain qcom,apr remoteproc0:smd-edge.apr_audio_svc.-1.-1: Failed to add apr 3 svc Fixes: 6d7860f5750d ("soc: qcom: apr: Add check for idr_alloc and of_property_read_string_index") Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Bjorn Andersson <andersson@kernel.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20221229151648.19839-3-stephan@gerhold.net 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.
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