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hwmon: (ad7414) Return proper error code for ad7414_probe() 

Return proper error if i2c_check_functionality reports
the adapter does not support the capability we need.

Also remove unneeded initialization for err variable.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Axel Lin 2010-11-08 20:40:34 -05:00 committed by Guenter Roeck
parent f7334b4ca9
commit f0030d87be
1 changed files with 4 additions and 2 deletions
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6
drivers/hwmon/ad7414.c
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@ -178,11 +178,13 @@ static int ad7414_probe(struct i2c_client *client,
{
struct ad7414_data *data;
int conf;
int err = 0;
int err;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_READ_WORD_DATA))
I2C_FUNC_SMBUS_READ_WORD_DATA)) {
err = -EOPNOTSUPP;
goto exit;
}
data = kzalloc(sizeof(struct ad7414_data), GFP_KERNEL);
if (!data) {