In the Linux kernel, the following vulnerability has been resolved:

spi: sprd: fix error pointer deref after DMA setup failure

The driver falls back to PIO mode if DMA setup fails during probe.

Make sure to check the dma.enabled flag before trying to release the DMA
channels also on late probe errors to avoid dereferencing an error
pointer (or attempting to release a channel a second time).

This issue was flagged by Sashiko when reviewing a devres allocation
conversion patch.

https://git.kernel.org/stable/c/0cdea166c1a07c200caf9d0b722224fca43b23ae

https://git.kernel.org/stable/c/3d67fffb74267772d461c02c67f1eff893ad547d

https://git.kernel.org/stable/c/450c319dd04d0eeff4184889768f7ada826a2e35

https://git.kernel.org/stable/c/a8f233fb0c7be29b97cd249f64120bf35ce72805

https://git.kernel.org/stable/c/b6f1acf4e57ccf708cdc0cb70f5bb5b65162963b

https://git.kernel.org/stable/c/be409d2bbe9ca7da7b05cc7dde7499bc481f0766

https://git.kernel.org/stable/c/be74e276111f3c23b8e040c8c5e308f67a573add

https://git.kernel.org/stable/c/c33b4496e95d04722055446c0a31213639438536

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