From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org,
vkoul@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com,
srinivas.kandagatla@linaro.org, slawomir.blauciak@intel.com,
Bard liao <yung-chuan.liao@linux.intel.com>,
Rander Wang <rander.wang@linux.intel.com>,
Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Sanyog Kale <sanyog.r.kale@intel.com>
Subject: [PATCH 07/10] soundwire: bus: disable pm_runtime in sdw_slave_delete
Date: Tue, 14 Jan 2020 18:08:41 -0600 [thread overview]
Message-ID: <20200115000844.14695-8-pierre-louis.bossart@linux.intel.com> (raw)
In-Reply-To: <20200115000844.14695-1-pierre-louis.bossart@linux.intel.com>
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(+)
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 57dec61142e5..33bb273454cf 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 = 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);
--
2.20.1
next prev parent reply other threads:[~2020-01-15 0:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 0:08 [PATCH 00/10] soundwire: bus: fix race conditions, add suspend-resume Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 01/10] soundwire: bus: fix race condition with probe_complete signaling Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 02/10] soundwire: bus: fix race condition with enumeration_complete signaling Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 03/10] soundwire: bus: fix race condition with initialization_complete signaling Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 04/10] soundwire: bus: add PM/no-PM versions of read/write functions Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 05/10] soundwire: bus: write Slave Device Number without runtime_pm Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 06/10] soundwire: bus: add helper to clear Slave status to UNATTACHED Pierre-Louis Bossart
2020-01-15 0:08 ` Pierre-Louis Bossart [this message]
2020-01-15 0:08 ` [PATCH 08/10] soundwire: bus: fix io error when processing alert event Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 09/10] soundwire: bus: add clock stop helpers Pierre-Louis Bossart
2020-01-15 0:08 ` [PATCH 10/10] soundwire: bus: don't treat CMD_IGNORED as error on ClockStop Pierre-Louis Bossart
2020-02-10 14:30 ` [alsa-devel] [PATCH 00/10] soundwire: bus: fix race conditions, add suspend-resume Pierre-Louis Bossart
2020-02-25 10:27 ` Vinod Koul
2020-02-25 15:23 ` Pierre-Louis Bossart
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