This is a note to let you know that I've just added the patch titled
spi: sun6i: disable/unprepare clocks on remove
to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
spi-sun6i-disable-unprepare-clocks-on-remove.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Fri Mar 16 15:11:08 CET 2018
From: Tobias Jordan <Tobias.Jordan@xxxxxxxxxxxxxx>
Date: Thu, 7 Dec 2017 15:04:53 +0100
Subject: spi: sun6i: disable/unprepare clocks on remove
From: Tobias Jordan <Tobias.Jordan@xxxxxxxxxxxxxx>
[ 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@xxxxxxxxxxxxxx>
Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/spi/spi-sun6i.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/spi/spi-sun6i.c
+++ b/drivers/spi/spi-sun6i.c
@@ -541,7 +541,7 @@ err_free_master:
static int sun6i_spi_remove(struct platform_device *pdev)
{
- pm_runtime_disable(&pdev->dev);
+ pm_runtime_force_suspend(&pdev->dev);
return 0;
}
Patches currently in stable-queue which might be from Tobias.Jordan@xxxxxxxxxxxxxx are
queue-4.15/spi-sun6i-disable-unprepare-clocks-on-remove.patch