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Use the resource-managed kzalloc to simplify error logic. Memory allocated with this function is automatically freed on driver detach. Use struct_size() helper to calculate the size of the atdma structure with its trailing flexible array. While here, move the mem allocation higher in the probe method, as failing to allocate memory indicates a serious system issue, and everything else does not matter anyway. All these help the code look a bit cleaner. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com Link: https://lore.kernel.org/r/20221025090306.297886-23-tudor.ambarus@microchip.com Signed-off-by: Vinod Koul <vkoul@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.