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authorLucas Stach <l.stach@pengutronix.de>2014-09-26 15:33:46 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-10-03 15:40:55 +0200
commitf9739d27059d8fd7b64096ea7251608628b5bd30 (patch)
tree6ffd2145d88465afd95bb8b66449add8a5f21d29 /drivers/cpufreq/cpufreq-dt.c
parentbbcf071969b20f356877c8067986be0a2dcaa2aa (diff)
downloadlinux-f9739d27059d8fd7b64096ea7251608628b5bd30.tar.bz2
cpufreq: cpufreq-dt: fix potential double put of cpu OF node
If cpufreq_generic_init() fails we jump into the resource cleanup path which contains a of_node_put() call. Another instance of this has already been called at that time resulting a double decrement of the refcount. Fix this by calling of_node_put() only after we are sure that nothing has gone wrong. Fixes: d2f31f1da54f "cpufreq: cpu0: Move per-cluster initialization code to ->init()" Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq-dt.c')
-rw-r--r--drivers/cpufreq/cpufreq-dt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index e00265066a75..6bbb8b913446 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -259,7 +259,6 @@ static int cpufreq_init(struct cpufreq_policy *policy)
else
priv->cdev = cdev;
}
- of_node_put(np);
priv->cpu_dev = cpu_dev;
priv->cpu_reg = cpu_reg;
@@ -270,6 +269,8 @@ static int cpufreq_init(struct cpufreq_policy *policy)
if (ret)
goto out_cooling_unregister;
+ of_node_put(np);
+
return 0;
out_cooling_unregister: