linux-kernel - [PATCH] cpufreq: Print driver name if cpufreq

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Date:   Wed, 21 Aug 2019 16:16:32 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-pm@...r.kernel.org (open list:CPU FREQUENCY SCALING FRAMEWORK)
Subject: [PATCH] cpufreq: Print driver name if cpufreq_suspend() fails

Instead of printing the policy, which is incidentally a kernel pointer,
so with limited interest, print the cpufreq driver name that failed to
be suspend, which is more useful for debugging.

Fixes: 2f0aea936360 ("cpufreq: suspend governors on system suspend/hibernate")
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/cpufreq/cpufreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c28ebf2810f1..330d789f81fc 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1807,8 +1807,8 @@ void cpufreq_suspend(void)
 		}
 
 		if (cpufreq_driver->suspend && cpufreq_driver->suspend(policy))
-			pr_err("%s: Failed to suspend driver: %p\n", __func__,
-				policy);
+			pr_err("%s: Failed to suspend driver: %s\n", __func__,
+				cpufreq_driver->name);
 	}
 
 suspend:
-- 
2.17.1