4.9-stable review patch. If anyone has any objections, please let me know.
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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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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 @@ -464,7 +464,7 @@ 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; }