[PATCH 03/31] hwmon: (pt5161l) use 4-argument i2c_smbus_read_block_data()

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

Pass the chunk length and destination buffer directly to
i2c_smbus_read_block_data() instead of copying through an intermediate
buffer.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/hwmon/pt5161l.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/pt5161l.c b/drivers/hwmon/pt5161l.c
index 1638f54f8eae..b38b1f63627a 100644
--- a/drivers/hwmon/pt5161l.c
+++ b/drivers/hwmon/pt5161l.c
@@ -121,7 +121,7 @@ static int pt5161l_read_block_data(struct pt5161l_data *data, u32 address,
 	int ret, tries;
 	u8 remain_len = len;
 	u8 curr_len;
-	u8 wbuf[16], rbuf[I2C_SMBUS_BLOCK_MAX];
+	u8 wbuf[16];
 	u8 cmd = 0x08; /* [7]:pec_en, [4:2]:func, [1]:start, [0]:end */
 	u8 config = 0x00; /* [6]:cfg_type, [4:1]:burst_len, [0]:address bit16 */
 
@@ -146,14 +146,13 @@ static int pt5161l_read_block_data(struct pt5161l_data *data, u32 address,
 				return ret;
 
 			ret = i2c_smbus_read_block_data(client, (cmd | 0x1),
-							rbuf);
+							curr_len, val);
 			if (ret == curr_len)
 				break;
 		}
 		if (tries >= 3)
 			return ret < 0 ? ret : -EIO;
 
-		memcpy(val, rbuf, curr_len);
 		val += curr_len;
 		address += curr_len;
 	}

-- 
2.56.0.257.gf7497c7d27-goog