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e267a5b3ec
If dma_request_chan() fails, no error is shown nor any information is shown in /sys/kernel/debug/devices_deferred if -EPROBE_DEFER is returned. Use dev_err_probe to fix both problems. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com> Link: https://msgid.link/r/20240110085403.457089-1-alexander.stein@ew.tq-group.com Signed-off-by: Mark Brown <broonie@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.