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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-03-08 12:31:53 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-03-10 15:14:14 +0000 |
| commit | 3c3e4b3a708a9d6451052e348981f37d2b3e92b0 (patch) | |
| tree | 7546692e603f8d4f6ad7915f2b8f604ca6139ea1 /drivers/iio | |
| parent | 6de2aeb5746e79b50d2b99bd63f08da880f735a3 (diff) | |
| download | linux-3c3e4b3a708a9d6451052e348981f37d2b3e92b0.tar.bz2 | |
iio: adc: meson-saradc: unlock on error in meson_sar_adc_lock()
The meson_sar_adc_lock() function is not supposed to hold the
"indio_dev->mlock" on the error path.
Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/meson_saradc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 29fa7736d80c..ede955d9b2a4 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -462,8 +462,10 @@ static int meson_sar_adc_lock(struct iio_dev *indio_dev) regmap_read(priv->regmap, MESON_SAR_ADC_DELAY, &val); } while (val & MESON_SAR_ADC_DELAY_BL30_BUSY && timeout--); - if (timeout < 0) + if (timeout < 0) { + mutex_unlock(&indio_dev->mlock); return -ETIMEDOUT; + } } return 0; |