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authorAxel Lin <axel.lin@gmail.com>2010-11-08 20:40:34 -0500
committerGuenter Roeck <guenter.roeck@ericsson.com>2010-11-11 09:32:07 -0800
commitf0030d87be3cb2eb9eac633d09cb5d9f107ed0c6 (patch)
treea75cfa0e336e81c5bfcbd958a98a153ec39c80d6 /drivers/hwmon/ad7414.c
parentf7334b4ca9108a86b64fbd0f435f44b2113ee053 (diff)
downloadop-kernel-dev-f0030d87be3cb2eb9eac633d09cb5d9f107ed0c6.zip
op-kernel-dev-f0030d87be3cb2eb9eac633d09cb5d9f107ed0c6.tar.gz
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>
Diffstat (limited to 'drivers/hwmon/ad7414.c')
-rw-r--r--drivers/hwmon/ad7414.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/hwmon/ad7414.c b/drivers/hwmon/ad7414.c
index 1e4c21f..86d822a 100644
--- a/drivers/hwmon/ad7414.c
+++ b/drivers/hwmon/ad7414.c
@@ -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) {
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