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soundwire: bus: disable pm_runtime in sdw_slave_delete 

[ Upstream commit dff70572e9 ]

Before removing the slave device, disable pm_runtime to prevent any
race condition with the resume being executed after the bus and slave
devices are removed.

Since this pm_runtime_disable() is handled in common routines,
implementations of Slave drivers do not need to call it in their
.remove() routine.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200115000844.14695-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Pierre-Louis Bossart 2020-01-14 18:08:41 -06:00 committed by Greg Kroah-Hartman
parent c4b62a7e52
commit 3e6f9c20bd
1 changed files with 2 additions and 0 deletions
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drivers/soundwire/bus.c
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@ -113,6 +113,8 @@ static int sdw_delete_slave(struct device *dev, void *data)
struct sdw_slave *slave = dev_to_sdw_dev(dev);
struct sdw_bus *bus = slave->bus;
pm_runtime_disable(dev);
sdw_slave_debugfs_exit(slave);
mutex_lock(&bus->bus_lock);