From: Dmitry Torokhov <dtor@chromium.org>
Date: Tue, 16 Dec 2014 23:09:37 +0000 (-0800)
Subject: PM / OPP: fix warning in of_free_opp_table()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0fe30da2cb43782ee62d30c00a273d6934e5370e;p=linux-beck.git

PM / OPP: fix warning in of_free_opp_table()

Not having OPP defined for a device is not a crime, we should not splat
warning in this case. Also, it seems that we are ready to accept invalid
dev (find_device_opp will return ERR_PTR(-EINVAL) then) so let's not
crash in dev_name() in such case.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index b78c14d30da2..aac7abcf74f8 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -799,9 +799,15 @@ void of_free_opp_table(struct device *dev)
 
 	/* Check for existing list for 'dev' */
 	dev_opp = find_device_opp(dev);
-	if (WARN(IS_ERR(dev_opp), "%s: dev_opp: %ld\n", dev_name(dev),
-		 PTR_ERR(dev_opp)))
+	if (IS_ERR(dev_opp)) {
+		int error = PTR_ERR(dev_opp);
+		if (error != -ENODEV)
+			WARN(1, "%s: dev_opp: %d\n",
+			     IS_ERR_OR_NULL(dev) ?
+					"Invalid device" : dev_name(dev),
+			     error);
 		return;
+	}
 
 	/* Hold our list modification lock here */
 	mutex_lock(&dev_opp_list_lock);