hwmon: (smm665): Return error from i2c_smbus_read_word_swapped

There is no reason to replace one error code with another,
and returning -1 as error code is wrong anyway.

Smatch log:
drivers/hwmon/smm665.c:225 smm665_read_adc() info: why not propagate 'rv'
from i2c_smbus_read_word_swapped() instead of (-1)?

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/hwmon/smm665.c b/drivers/hwmon/smm665.c
index d9e1b7de78da..4ef5802df6d8 100644
--- a/drivers/hwmon/smm665.c
+++ b/drivers/hwmon/smm665.c
@@ -222,7 +222,7 @@ static int smm665_read_adc(struct smm665_data *data, int adc)
         rv = i2c_smbus_read_word_swapped(client, 0);
         if (rv < 0) {
                 dev_dbg(&client->dev, "Failed to read ADC value: error %d", rv);
-                return -1;
+                return rv;
         }
         /*
          * Validate/verify readback adc channel (in bit 11..14).