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Diffstat (limited to 'target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch')
-rw-r--r--target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch23
1 files changed, 23 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch b/target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch
new file mode 100644
index 0000000000..c0eb2eb3cd
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch
@@ -0,0 +1,23 @@
+From 001a8dcb56ced58c518aaa10a4f0ba5e878705b6 Mon Sep 17 00:00:00 2001
+From: Georgi Djakov <georgi.djakov@linaro.org>
+Date: Tue, 17 May 2016 16:15:43 +0300
+Subject: [PATCH 56/69] cpufreq-dt: Add missing rcu locks
+
+Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
+---
+ drivers/cpufreq/cpufreq-dt.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/cpufreq/cpufreq-dt.c
++++ b/drivers/cpufreq/cpufreq-dt.c
+@@ -143,8 +143,10 @@ static int opp_notifier(struct notifier_
+ ret = PTR_ERR(cpu_reg);
+ goto out;
+ }
++ rcu_read_lock();
+ volt = dev_pm_opp_get_voltage(opp);
+ freq = dev_pm_opp_get_freq(opp);
++ rcu_read_unlock();
+
+ mutex_lock(&priv->lock);
+ if (freq == priv->opp_freq) {