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[ Upstream commit 760b9b4f6de9a33ca56a05f950cabe82138d25bd ] If the device configuration fails (if `dma_dev->device_config()`), `sg_dma_address(&sg)` is not initialized and the jump to `err_dma_prep` leads to calling `dma_unmap_single()` on `sg_dma_address(&sg)`. Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20250610142918.169540-2-fourier.thomas@gmail.com 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.