[PATCH 13/14] POWER: bq27x00: Cleanup bq27x00_i2c_read

From: Lars-Peter Clausen
Date: Sun Feb 06 2011 - 14:34:37 EST


Some minor stylistic cleanups.

Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/power/bq27x00_battery.c | 45 ++++++++++++++++++++------------------
1 files changed, 24 insertions(+), 21 deletions(-)

diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index 83904a2..03d073c 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -558,36 +558,39 @@ static DEFINE_MUTEX(battery_mutex);
static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, bool single)
{
struct i2c_client *client = to_i2c_client(di->dev);
- struct i2c_msg msg[1];
+ struct i2c_msg msg;
unsigned char data[2];
int err, ret;

if (!client->adapter)
return -ENODEV;

- msg->addr = client->addr;
- msg->flags = 0;
- msg->len = 1;
- msg->buf = data;
+ msg.addr = client->addr;
+ msg.flags = 0;
+ msg.len = 1;
+ msg.buf = data;

data[0] = reg;
- err = i2c_transfer(client->adapter, msg, 1);
+ err = i2c_transfer(client->adapter, &msg, 1);
+
+ if (err < 0)
+ return err;
+
+ if (single)
+ msg.len = 1;
+ else
+ msg.len = 2;
+
+ msg.flags = I2C_M_RD;
+ err = i2c_transfer(client->adapter, &msg, 1);
+ if (err < 0)
+ return err;
+
+ if (!single)
+ ret = get_unaligned_le16(data);
+ else
+ ret = data[0];

- if (err >= 0) {
- if (!single)
- msg->len = 2;
- else
- msg->len = 1;
-
- msg->flags = I2C_M_RD;
- err = i2c_transfer(client->adapter, msg, 1);
- if (err >= 0) {
- if (!single)
- ret = get_unaligned_le16(data);
- else
- ret = data[0];
- }
- }
return ret;
}

--
1.7.2.3

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