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![]() When interrupted, wait_event_interruptible_timeout() returns -ERESTARTSYS, and the SPI transfer in progress will fail, as expected: m25p80 spi0.0: SPI transfer failed: -512 spi_master spi0: failed to transfer one message from queue However, as the underlying DMA transfers may not have completed, all subsequent SPI transfers may start to fail: spi_master spi0: receive timeout qspi_transfer_out_in() returned -110 m25p80 spi0.0: SPI transfer failed: -110 spi_master spi0: failed to transfer one message from queue Fix this by calling dmaengine_terminate_all() not only for timeouts, but also for errors. This can be reproduced on r8a7991/koelsch, using "hd /dev/mtd0" followed by CTRL-C. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org |
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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 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.