linux-kernel - [PATCH v2] cpufreq: Fix error return code in cpufreq

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Message-ID: <20201126011239.42294-1-bobo.shaobowang@huawei.com>
Date:   Thu, 26 Nov 2020 09:12:39 +0800
From:   Wang ShaoBo <bobo.shaobowang@...wei.com>
To:     <rjw@...ysocki.net>
CC:     <viresh.kumar@...aro.org>, <linux-pm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <huawei.libin@...wei.com>,
        <cj.chengjian@...wei.com>, <bobo.shaobowang@...wei.com>
Subject: [PATCH v2] cpufreq: Fix error return code in cpufreq_online()

Fix to return proper error code instead of 0 in cpufreq_online(), as done
elsewhere in this function.

Signed-off-by: Wang ShaoBo <bobo.shaobowang@...wei.com>
---
 drivers/cpufreq/cpufreq.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1e7e3f2ff09f..d3a28de35593 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1391,8 +1391,10 @@ static int cpufreq_online(unsigned int cpu)
 
 		policy->min_freq_req = kzalloc(2 * sizeof(*policy->min_freq_req),
 					       GFP_KERNEL);
-		if (!policy->min_freq_req)
+		if (!policy->min_freq_req) {
+			ret = -ENOMEM;
 			goto out_destroy_policy;
+		}
 
 		ret = freq_qos_add_request(&policy->constraints,
 					   policy->min_freq_req, FREQ_QOS_MIN,
@@ -1429,6 +1431,7 @@ static int cpufreq_online(unsigned int cpu)
 	if (cpufreq_driver->get && has_target()) {
 		policy->cur = cpufreq_driver->get(policy->cpu);
 		if (!policy->cur) {
+			ret = -EIO;
 			pr_err("%s: ->get() failed\n", __func__);
 			goto out_destroy_policy;
 		}
-- 
2.17.1