[PATCH v1 hwmon] hwmon: (pmbus) Fix driver info initialization in probe routine

[Vadim Pasternak <vadimp@mellanox.com>]

Fix tps53679_probe() by using dynamically allocated "pmbus_driver_info"
structure instead of static. Usage of static structures causes
overwritten of the field "vrm_version", in case the system is equipped
with several tps53679 devices with the different "vrm_version".
In such case the last probed device overwrites this field for all
others.

Fixes: 610526527a13 ("hwmon: (pmbus) Add support for Texas Instruments tps53679 device")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
---
 drivers/hwmon/pmbus/tps53679.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/tps53679.c b/drivers/hwmon/pmbus/tps53679.c
index 85b515cd9df0..45eacc504e2f 100644
--- a/drivers/hwmon/pmbus/tps53679.c
+++ b/drivers/hwmon/pmbus/tps53679.c
@@ -80,7 +80,15 @@ static struct pmbus_driver_info tps53679_info = {
 static int tps53679_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
-	return pmbus_do_probe(client, id, &tps53679_info);
+	struct pmbus_driver_info *info;
+
+	info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	memcpy(info, &tps53679_info, sizeof(*info));
+
+	return pmbus_do_probe(client, id, info);
 }
 
 static const struct i2c_device_id tps53679_id[] = {
-- 
2.11.0