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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2017-07-20 18:24:21 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2017-08-20 17:41:14 +0300 |
| commit | a6fe5e52d5ecfc98530034d6c9db73777cf41ede (patch) | |
| tree | 184aac4328e6f7e210f4b2a459ecad116677f9be | |
| parent | 73e3e3fc50de50cfd68e945d85679c983ed31bd9 (diff) | |
| download | linux-a6fe5e52d5ecfc98530034d6c9db73777cf41ede.tar.xz | |
iio: adc: ti-ads1015: don't return invalid value from buffer setup callbacks
pm_runtime_get_sync() and pm_runtime_put_autosuspend() return 0 on
success, 1 if the device's runtime PM status was already requested status
or error code on failure. So a positive return value doesn't indicate an
error condition.
However, any non-zero return values from buffer preenable and postdisable
callbacks are recognized as an error and this driver reuses the return
value from pm_runtime_get_sync() and pm_runtime_put_autosuspend() in
these callbacks. This change fixes the false error detections.
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ti-ads1015.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c index 2f52b149f49a..d48515682dee 100644 --- a/drivers/iio/adc/ti-ads1015.c +++ b/drivers/iio/adc/ti-ads1015.c @@ -235,7 +235,7 @@ static int ads1015_set_power_state(struct ads1015_data *data, bool on) ret = pm_runtime_put_autosuspend(dev); } - return ret; + return ret < 0 ? ret : 0; } static |