FAILED: patch "[PATCH] PM / OPP: Add missing of_node_put(np)" failed to apply to 4.9-stable tree

FAILED: patch "[PATCH] PM / OPP: Add missing of_node_put(np)" failed to apply to 4.9-stable tree

[gregkh]

The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

>From 7978db344719dab1e56d05e6fc04aaaddcde0a5e Mon Sep 17 00:00:00 2001
From: Tobias Jordan <Tobias.Jordan@elektrobit.com>
Date: Wed, 4 Oct 2017 11:35:03 +0530
Subject: [PATCH] PM / OPP: Add missing of_node_put(np)

The for_each_available_child_of_node() loop in _of_add_opp_table_v2()
doesn't drop the reference to "np" on errors. Fix that.

Fixes: 274659029c9d (PM / OPP: Add support to parse "operating-points-v2" bindings)
Cc: 4.3+ <stable@vger.kernel.org> # 4.3+
Signed-off-by: Tobias Jordan <Tobias.Jordan@elektrobit.com>
[ VK: Improved commit log. ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index 0b718886479b..87509cb69f79 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -397,6 +397,7 @@ static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np)
 			dev_err(dev, "%s: Failed to add OPP, %d\n", __func__,
 				ret);
 			_dev_pm_opp_remove_table(opp_table, dev, false);
+			of_node_put(np);
 			goto put_opp_table;
 		}
 	}