[v2,15/19] soundwire: bus: disable pm_runtime in sdw_slave_delete
diff mbox series

Message ID 20191106192223.6003-16-pierre-louis.bossart@linux.intel.com
State New
Headers show
Series
  • soundwire: code hardening and suspend-resume support
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Commit Message

Pierre-Louis Bossart Nov. 6, 2019, 7:22 p.m. UTC
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>
---
 drivers/soundwire/bus.c | 2 ++
 1 file changed, 2 insertions(+)

Patch
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diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 93856747b934..7d02b0ae68e2 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -113,6 +113,8 @@  static int sdw_delete_slave(struct device *dev, void *data)
 	struct sdw_slave *slave = to_sdw_slave_device(dev);
 	struct sdw_bus *bus = slave->bus;
 
+	pm_runtime_disable(dev);
+
 	sdw_slave_debugfs_exit(slave);
 
 	mutex_lock(&bus->bus_lock);