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>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 52736e3..29f4275 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3955,7 +3955,7 @@ static void __spi_transfer_message_noqueue(struct spi_controller *ctlr, struct s
 
        mutex_lock(&ctlr->io_mutex);
 
-       was_busy = READ_ONCE(ctlr->busy);
+       was_busy = ctlr->busy;
 
        ret = __spi_pump_transfer_message(ctlr, msg, was_busy);
        if (ret)