4.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Akinobu Mita <akinobu.m...@gmail.com>
commit a6fe5e52d5ecfc98530034d6c9db73777cf41ede upstream.
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.bal...@gmail.com>
Signed-off-by: Akinobu Mita <akinobu.m...@gmail.com>
Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/iio/adc/ti-ads1015.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/adc/ti-ads1015.c
+++ b/drivers/iio/adc/ti-ads1015.c
@@ -235,7 +235,7 @@ static int ads1015_set_power_state(struc
ret = pm_runtime_put_autosuspend(dev);
}
- return ret;
+ return ret < 0 ? ret : 0;
}
static
