spi: cadence-quadspi: fix controller deregistration

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Make sure to deregister the controller before dropping the reference
count that allows new operations to start to allow SPI drivers to do I/O
during deregistration.

Fixes: 7446284023 ("spi: cadence-quadspi: Implement refcount to handle unbind during busy")
Cc: stable@vger.kernel.org	# 6.17
Cc: Khairul Anuar Romli <khairul.anuar.romli@altera.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260414134319.978196-3-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

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Johan Hovold 2026-04-14 15:43:13 +02:00 • committed by Mark Brown

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commit 964ee97937

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drivers/spi/spi-cadence-quadspi.c

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