diff options
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.patch | 23 |
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) { |