Re: [PATCH AUTOSEL 5.10 11/17] spi: spidev: fix a race condition when accessing spidev->spi

Mark Brown
2023-01-16T14:54:07Z

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On Mon, Jan 16, 2023 at 09:04:42AM -0500, Sasha Levin wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> [ Upstream commit a720416d94634068951773cb9e9d6f1b73769e5b ]
>
> There's a spinlock in place that is taken in file_operations callbacks
> whenever we check if spidev->spi is still alive (not null). It's also
> taken when spidev->spi is set to NULL in remove().

There are ongoing discussions of race conditions with this commit.

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