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Johan Hovold 6a86cf2c09 dmaengine: at_hdmac: fix device leak on of_dma_xlate() 
commit b9074b2d7a upstream.

Make sure to drop the reference taken when looking up the DMA platform
device during of_dma_xlate() when releasing channel resources.

Note that commit 3832b78b3e ("dmaengine: at_hdmac: add missing
put_device() call in at_dma_xlate()") fixed the leak in a couple of
error paths but the reference is still leaking on successful allocation.

Fixes: bbe89c8e3d ("at_hdmac: move to generic DMA binding")
Fixes: 3832b78b3e ("dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate()")
Cc: stable@vger.kernel.org	# 3.10: 3832b78b3e
Cc: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20251117161258.10679-2-johan@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-01-23 11:18:48 +01:00
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README

README 

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 reStructuredText 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.