isp1704_charger: Fix probe error path

We enable power, but don't disable it in case of an error.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index b806667..cce6211 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -470,6 +470,7 @@
 
 	dev_err(&pdev->dev, "failed to register isp1704 with error %d\n", ret);
 
+	isp1704_charger_set_power(isp, 0);
 	return ret;
 }