The driver core supports the ability to handle the creation and removal of device-specific sysfs files in a race-free manner. Take advantage of that by converting this driver to use this by moving the sysfs attributes into a group and assigning the dev_groups pointer to it.
Cc: Vinod Koul vkoul@kernel.org Cc: Bard Liao yung-chuan.liao@linux.intel.com Cc: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Cc: Sanyog Kale sanyog.r.kale@intel.com Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/soundwire/bus_type.c | 1 + drivers/soundwire/sysfs_local.h | 3 +++ drivers/soundwire/sysfs_slave.c | 6 +----- 3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c index 893296f3fe39..81c77e6ddbad 100644 --- a/drivers/soundwire/bus_type.c +++ b/drivers/soundwire/bus_type.c @@ -193,6 +193,7 @@ int __sdw_register_driver(struct sdw_driver *drv, struct module *owner)
drv->driver.owner = owner; drv->driver.probe = sdw_drv_probe; + drv->driver.dev_groups = sdw_attr_groups;
if (drv->remove) drv->driver.remove = sdw_drv_remove; diff --git a/drivers/soundwire/sysfs_local.h b/drivers/soundwire/sysfs_local.h index 7268bc24c538..3ab8658a7782 100644 --- a/drivers/soundwire/sysfs_local.h +++ b/drivers/soundwire/sysfs_local.h @@ -11,6 +11,9 @@ /* basic attributes to report status of Slave (attachment, dev_num) */ extern const struct attribute_group *sdw_slave_status_attr_groups[];
+/* attributes for all soundwire devices */ +extern const struct attribute_group *sdw_attr_groups[]; + /* additional device-managed properties reported after driver probe */ int sdw_slave_sysfs_init(struct sdw_slave *slave); int sdw_slave_sysfs_dpn_init(struct sdw_slave *slave); diff --git a/drivers/soundwire/sysfs_slave.c b/drivers/soundwire/sysfs_slave.c index 3723333a5c2b..4c716c167493 100644 --- a/drivers/soundwire/sysfs_slave.c +++ b/drivers/soundwire/sysfs_slave.c @@ -204,7 +204,7 @@ static const struct attribute_group dp0_group = { .name = "dp0", };
-static const struct attribute_group *slave_groups[] = { +const struct attribute_group *sdw_attr_groups[] = { &slave_attr_group, &sdw_slave_dev_attr_group, &dp0_group, @@ -215,10 +215,6 @@ int sdw_slave_sysfs_init(struct sdw_slave *slave) { int ret;
- ret = devm_device_add_groups(&slave->dev, slave_groups); - if (ret < 0) - return ret; - if (slave->prop.source_ports || slave->prop.sink_ports) { ret = sdw_slave_sysfs_dpn_init(slave); if (ret < 0)