iio: srf04: fix pm_runtime handling on probe error path

When pm_runtime_set_active() fails during probe, the driver logs the
error and unregisters the IIO device, but then falls through and still
calls pm_runtime_enable() before returning the error.

Since probe returns an error, srf04_remove() is never called, so
runtime PM is left enabled without a matching pm_runtime_disable().
This leaks the enable and triggers an "Unbalanced pm_runtime_enable!"
warning on a subsequent bind of the device.

Return the error right after unregistering the IIO device so that
runtime PM is not enabled on the failure path.

Fixes: 2251157b335b ("iio: srf04: add power management feature")
Cc: stable@vger.kernel.org
Signed-off-by: Cong Nguyen <congnt264@gmail.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>

0 files changed, 0 insertions, 0 deletions