Amelie Delaunay
7b821a6485
spi: stm32: fix potential dereference null return value
This patch fixes the usage of rx_dma_desc and tx_dma_desc pointers returned by dmaengine_prep_slave_sg, which can be null. Detected by CoverityScan, CID#1446587 ("Dereference null return value") Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.
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