[PATCH 26/31] hwmon: (pmbus/q54sj108a2) use 4-argument i2c_smbus_read_block_data()

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

Pass the buffer size to i2c_smbus_read_block_data() in
q54sj108a2_debugfs_read() and q54sj108a2_probe().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/hwmon/pmbus/q54sj108a2.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/drivers/hwmon/pmbus/q54sj108a2.c b/drivers/hwmon/pmbus/q54sj108a2.c
index ecac405d7536..8ce1824249e7 100644
--- a/drivers/hwmon/pmbus/q54sj108a2.c
+++ b/drivers/hwmon/pmbus/q54sj108a2.c
@@ -120,22 +120,26 @@ static ssize_t q54sj108a2_debugfs_read(struct file *file, char __user *buf,
 		rc = snprintf(data, 3, "%02x", rc);
 		break;
 	case Q54SJ108A2_DEBUGFS_MFR_ID:
-		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_ID, data);
+		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_ID,
+					       I2C_SMBUS_BLOCK_MAX, data);
 		if (rc < 0)
 			return rc;
 		break;
 	case Q54SJ108A2_DEBUGFS_MFR_MODEL:
-		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_MODEL, data);
+		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_MODEL,
+					       I2C_SMBUS_BLOCK_MAX, data);
 		if (rc < 0)
 			return rc;
 		break;
 	case Q54SJ108A2_DEBUGFS_MFR_REVISION:
-		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_REVISION, data);
+		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_REVISION,
+					       I2C_SMBUS_BLOCK_MAX, data);
 		if (rc < 0)
 			return rc;
 		break;
 	case Q54SJ108A2_DEBUGFS_MFR_LOCATION:
-		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_LOCATION, data);
+		rc = i2c_smbus_read_block_data(psu->client, PMBUS_MFR_LOCATION,
+					       I2C_SMBUS_BLOCK_MAX, data);
 		if (rc < 0)
 			return rc;
 		break;
@@ -147,7 +151,8 @@ static ssize_t q54sj108a2_debugfs_read(struct file *file, char __user *buf,
 		rc = snprintf(data, 3, "%02x", rc);
 		break;
 	case Q54SJ108A2_DEBUGFS_BLACKBOX_READ:
-		rc = i2c_smbus_read_block_data(psu->client, READ_HISTORY_EVENTS, data);
+		rc = i2c_smbus_read_block_data(psu->client, READ_HISTORY_EVENTS,
+					       I2C_SMBUS_BLOCK_MAX, data);
 		if (rc < 0)
 			return rc;
 
@@ -156,7 +161,8 @@ static ssize_t q54sj108a2_debugfs_read(struct file *file, char __user *buf,
 		out = data_char;
 		break;
 	case Q54SJ108A2_DEBUGFS_FLASH_KEY:
-		rc = i2c_smbus_read_block_data(psu->client, PMBUS_FLASH_KEY_WRITE, data);
+		rc = i2c_smbus_read_block_data(psu->client, PMBUS_FLASH_KEY_WRITE,
+					       I2C_SMBUS_BLOCK_MAX, data);
 		if (rc < 0)
 			return rc;
 
@@ -297,7 +303,8 @@ static int q54sj108a2_probe(struct i2c_client *client)
 
 	chip_id = (enum chips)(uintptr_t)i2c_get_match_data(client);
 
-	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf);
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID,
+					sizeof(buf) - 1, buf);
 	if (ret < 0) {
 		dev_err(&client->dev, "Failed to read Manufacturer ID\n");
 		return ret;
@@ -311,7 +318,8 @@ static int q54sj108a2_probe(struct i2c_client *client)
 	/*
 	 * The chips support reading PMBUS_MFR_MODEL.
 	 */
-	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf);
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL,
+					sizeof(buf) - 1, buf);
 	if (ret < 0) {
 		dev_err(dev, "Failed to read Manufacturer Model\n");
 		return ret;
@@ -326,7 +334,8 @@ static int q54sj108a2_probe(struct i2c_client *client)
 		return -ENODEV;
 	}
 
-	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_REVISION, buf);
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_REVISION,
+					sizeof(buf) - 1, buf);
 	if (ret < 0) {
 		dev_err(dev, "Failed to read Manufacturer Revision\n");
 		return ret;

-- 
2.56.0.257.gf7497c7d27-goog