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[ Upstream commit506875c30f] Caller of dma_cookie_complete is expected to hold a lock to prevent concurrency over the channel's completed cookie marker. Call dma_cookie_complete() with the lock held. Fixes:e1f7c9eee7("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver") Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Link: https://lore.kernel.org/r/20211215110115.191749-5-tudor.ambarus@microchip.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Stable-dep-of:4d43acb145("dmaengine: at_xdmac: fix potential Oops in at_xdmac_prep_interleaved()") 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.