On Mon, Jan 16, 2023 at 09:04:42AM -0500, Sasha Levin wrote: > From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> > > [ 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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