spi: Remove unneeded READ_ONCE for ctlr->busy flag

Now this flag is written entirely in the mutex, so no need for READ_ONCE

Signed-off-by: David Jander <david@protonic.nl>
Link: https://lore.kernel.org/r/20220621061234.3626638-9-david@protonic.nl
Signed-off-by: Mark Brown <broonie@kernel.org>
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David Jander 2022-06-21 08:12:31 +02:00 • committed by Mark Brown
commit 1a9cafcb57
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