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iio: frequency: adf4350: using an uninitialized variable

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GCC complains that we use an uninitialized variable if the user passes
an invalid parameter to adf4350_read().  I decided that we should return
-EINVAL instead in that case.

However, when I looked up at adf4350_write() it returned -ENODEV for
that condition.  In the end, I decided the -EINVAL was the right thing
and I change adf4350_write() to match.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2012-06-08 09:54:32 +03:00 committed by Greg Kroah-Hartman
parent e86ee142a2
commit 1a135d1ab5
1 changed files with 2 additions and 2 deletions
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4
drivers/iio/frequency/adf4350.c
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@ -272,7 +272,7 @@ static ssize_t adf4350_write(struct iio_dev *indio_dev,
adf4350_sync_config(st);
break;
default:
ret = -ENODEV;
ret = -EINVAL;
}
mutex_unlock(&indio_dev->mlock);
@ -311,7 +311,7 @@ static ssize_t adf4350_read(struct iio_dev *indio_dev,
val = !!(st->regs[ADF4350_REG2] & ADF4350_REG2_POWER_DOWN_EN);
break;
default:
ret = -ENODEV;
ret = -EINVAL;
}
mutex_unlock(&indio_dev->mlock);