linux-kernel - [PATCH 4.9 09/87] PM / OPP: Error out on failing to add static OPPs for v1 bindings

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Date:   Mon, 13 Nov 2017 13:55:26 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Viresh Kumar <viresh.kumar@...aro.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.9 09/87] PM / OPP: Error out on failing to add static OPPs for v1 bindings

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Viresh Kumar <viresh.kumar@...aro.org>


[ Upstream commit 04a86a84c42ca18f37ab446127dc619b41dd3b23 ]

The code adding static OPPs for V2 bindings already does so. Make the V1
bindings specific code behave the same.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Reviewed-by: Stephen Boyd <sboyd@...eaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/base/power/opp/of.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

--- a/drivers/base/power/opp/of.c
+++ b/drivers/base/power/opp/of.c
@@ -386,7 +386,7 @@ static int _of_add_opp_table_v1(struct d
 {
 	const struct property *prop;
 	const __be32 *val;
-	int nr;
+	int nr, ret;
 
 	prop = of_find_property(dev->of_node, "operating-points", NULL);
 	if (!prop)
@@ -409,9 +409,13 @@ static int _of_add_opp_table_v1(struct d
 		unsigned long freq = be32_to_cpup(val++) * 1000;
 		unsigned long volt = be32_to_cpup(val++);
 
-		if (_opp_add_v1(dev, freq, volt, false))
-			dev_warn(dev, "%s: Failed to add OPP %ld\n",
-				 __func__, freq);
+		ret = _opp_add_v1(dev, freq, volt, false);
+		if (ret) {
+			dev_err(dev, "%s: Failed to add OPP %ld (%d)\n",
+				__func__, freq, ret);
+			dev_pm_opp_of_remove_table(dev);
+			return ret;
+		}
 		nr -= 2;
 	}