[PATCH v3 15/22] soundwire: intel: disable pm_runtime when removing a master

From: Pierre-Louis Bossart
Date: Thu Nov 14 2019 - 13:18:01 EST


Prevent race conditions between remove and resume by disabling
pm_runtime.

Note that this only takes care of pm_runtime at the Master level, the
same precautions are needed when removing a Slave device.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
drivers/soundwire/intel.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 69b0c8f65ad8..460e2d8cf80d 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -1275,6 +1275,8 @@ static int intel_master_remove(struct sdw_master_device *md)
{
struct sdw_intel *sdw;

+ pm_runtime_disable(&md->dev);
+
sdw = md->pdata;

if (!sdw->cdns.bus.prop.hw_disabled) {
--
2.20.1