On systems with more than one tps23861, creating the debugfs directory
for additional devices fails with
debugfs: Directory 'tps23861' with parent '/' already present!
To resolve this, include the hwmon device name in the directory name.
Since the name is unique, this guarantees that the debugfs directory
is unique.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@xxxxxxxxx>
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/tps23861.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/hwmon/tps23861.c b/drivers/hwmon/tps23861.c
index 019009b71a90..a3d7d6b75a26 100644
--- a/drivers/hwmon/tps23861.c
+++ b/drivers/hwmon/tps23861.c
@@ -503,9 +503,17 @@ static int tps23861_port_status_show(struct seq_file *s, void *data)
DEFINE_SHOW_ATTRIBUTE(tps23861_port_status);
-static void tps23861_init_debugfs(struct tps23861_data *data)
+static void tps23861_init_debugfs(struct tps23861_data *data,
+ struct device *hwmon_dev)
{
- data->debugfs_dir = debugfs_create_dir(data->client->name, NULL);
+ const char *debugfs_name;
+
+ debugfs_name = devm_kasprintf(&data->client->dev, GFP_KERNEL, "%s-%s",
+ data->client->name, dev_name(hwmon_dev));
+ if (!debugfs_name)
+ return;
+
+ data->debugfs_dir = debugfs_create_dir(debugfs_name, NULL);
debugfs_create_file("port_status",
0400,
@@ -554,7 +562,7 @@ static int tps23861_probe(struct i2c_client *client)
if (IS_ERR(hwmon_dev))
return PTR_ERR(hwmon_dev);
- tps23861_init_debugfs(data);
+ tps23861_init_debugfs(data, hwmon_dev);
return 0;
}
--
2.34.3
