[PATCH 31/31] hwmon: (pmbus/zl6100) use 4-argument i2c_smbus_read_block_data()

[Dmitry Torokhov]

Pass sizeof(device_id) - 1 to i2c_smbus_read_block_data() in
zl6100_probe() to leave space for the NUL terminator.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
 drivers/hwmon/pmbus/zl6100.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/zl6100.c b/drivers/hwmon/pmbus/zl6100.c
index 5db2a7818d16..43f59cfc313f 100644
--- a/drivers/hwmon/pmbus/zl6100.c
+++ b/drivers/hwmon/pmbus/zl6100.c
@@ -290,7 +290,7 @@ static int zl6100_probe(struct i2c_client *client)
 		return -ENODEV;
 
 	ret = i2c_smbus_read_block_data(client, ZL6100_DEVICE_ID,
-					device_id);
+					sizeof(device_id) - 1, device_id);
 	if (ret < 0) {
 		dev_err(&client->dev, "Failed to read device ID\n");
 		return ret;

-- 
2.56.0.257.gf7497c7d27-goog