linux-kernel - [PATCH 4.9 076/145] spi: sun4i: disable clocks in the remove function

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Date:   Fri, 23 Feb 2018 19:26:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Takuo Koguchi <takuo.koguchi.sw@...achi.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.9 076/145] spi: sun4i: disable clocks in the remove function

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Takuo Koguchi <takuo.koguchi@...il.com>


[ Upstream commit c810daba0ab5226084a56893a789af427a801146 ]

mclk and hclk need to be disabled. Since pm_runtime_disable does
not disable the clocks, use pm_runtime_force_suspend instead.

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

Signed-off-by: Takuo Koguchi <takuo.koguchi.sw@...achi.com>
Acked-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/spi/spi-sun4i.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/spi/spi-sun4i.c
+++ b/drivers/spi/spi-sun4i.c
@@ -466,7 +466,7 @@ err_free_master:
 
 static int sun4i_spi_remove(struct platform_device *pdev)
 {
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_force_suspend(&pdev->dev);
 
 	return 0;
 }