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From:   Sasha Levin <Alexander.Levin@microsoft.com>
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CC:     Tobias Jordan <Tobias.Jordan@elektrobit.com>,
        Mark Brown <broonie@kernel.org>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.9 202/219] spi: sun6i: disable/unprepare clocks
 on remove
Thread-Topic: [PATCH AUTOSEL for 4.9 202/219] spi: sun6i: disable/unprepare
 clocks on remove
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Date:   Sat, 3 Mar 2018 22:29:54 +0000
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From: Tobias Jordan <Tobias.Jordan@elektrobit.com>

[ Upstream commit 2d9bbd02c54094ceffa555143b0d68cd06504d63 ]

sun6i_spi_probe() uses sun6i_spi_runtime_resume() to prepare/enable
clocks, so sun6i_spi_remove() should use sun6i_spi_runtime_suspend() to
disable/unprepare them if we're not suspended.
Replacing pm_runtime_disable() by pm_runtime_force_suspend() will ensure
that sun6i_spi_runtime_suspend() is called if needed.

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: 3558fe900e8af (spi: sunxi: Add Allwinner A31 SPI controller driver)
Signed-off-by: Tobias Jordan <Tobias.Jordan@elektrobit.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/spi/spi-sun6i.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c
index 9918a57a6a6e..7e7da97982aa 100644
--- a/drivers/spi/spi-sun6i.c
+++ b/drivers/spi/spi-sun6i.c
@@ -464,7 +464,7 @@ err_free_master:
=20
 static int sun6i_spi_remove(struct platform_device *pdev)
 {
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_force_suspend(&pdev->dev);
=20
 	return 0;
 }
--=20
2.14.1