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@xxxxxxxxxx>
Cc: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Cc: Sanyog Kale <sanyog.r.kale@xxxxxxxxx>
Cc: alsa-devel@xxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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)
--
2.37.1
