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staging: iio: cdc/ad7746: fix missing return value 

As found by "gcc -Wmaybe-uninitialized", the latest change to the
driver lacked an initalization for the return code in one of the
added cases:

drivers/staging/iio/cdc/ad7746.c: In function ‘ad7746_read_raw’:
drivers/staging/iio/cdc/ad7746.c:655:2: error: ‘ret’ may be used uninitialized in this function [-Werror=maybe-uninitialized]

This sets it to IIO_VAL_INT, which I think is what we want here.

Fixes: 2296c0623e ("staging: iio: cdc: ad7746: implement IIO_CHAN_INFO_SAMP_FREQ")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Arnd Bergmann 2016-10-25 17:56:23 +02:00 committed by Jonathan Cameron
parent 3904b28efb
commit 3089ec2c10
1 changed files with 1 additions and 0 deletions
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drivers/staging/iio/cdc/ad7746.c
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@ -642,6 +642,7 @@ static int ad7746_read_raw(struct iio_dev *indio_dev,
case IIO_VOLTAGE:
*val = ad7746_vt_filter_rate_table[
(chip->config >> 6) & 0x3][0];
ret = IIO_VAL_INT;
break;
default:
ret = -EINVAL;