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Staging: iio: release locks on error paths 

There are a couple places here where we should have called
mutex_unlock() before returning.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dan Carpenter 2011-06-30 12:01:31 +03:00 committed by Greg Kroah-Hartman
parent 7bcf302ff1
commit 85ee35e50d
1 changed files with 6 additions and 2 deletions
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8
drivers/staging/iio/accel/adis16201_core.c
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@ -305,13 +305,17 @@ static int adis16201_read_raw(struct iio_dev *indio_dev,
mutex_lock(&indio_dev->mlock);
addr = adis16201_addresses[chan->address][0];
ret = adis16201_spi_read_reg_16(indio_dev, addr, &val16);
if (ret)
if (ret) {
mutex_unlock(&indio_dev->mlock);
return ret;
}
if (val16 & ADIS16201_ERROR_ACTIVE) {
ret = adis16201_check_status(indio_dev);
if (ret)
if (ret) {
mutex_unlock(&indio_dev->mlock);
return ret;
}
}
val16 = val16 & ((1 << chan->scan_type.realbits) - 1);
if (chan->scan_type.sign == 's')