[PATCH] cpufreq: pmac64-cpufreq: Fix refcount leak on error paths

[Miaoqian Lin]

of_cpu_device_node_get obtain a reference to the device node which
must be released with of_node_put().

Add missing of_node_put() on error paths to fix.

Found via static analysis and code review.

Fixes: 760287ab90a3 ("cpufreq: pmac64-cpufreq: remove device tree parsing for 
cpu nodes")
Fixes: 4350147a816b ("[PATCH] ppc64: SMU based macs cpufreq support")
Cc: sta...@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq...@gmail.com>
---
 drivers/cpufreq/pmac64-cpufreq.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 80897ec8f00e..0e0205b888ba 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -356,8 +356,10 @@ static int __init g5_neo2_cpufreq_init(struct device_node 
*cpunode)
                use_volts_smu = 1;
        else if (of_machine_is_compatible("PowerMac11,2"))
                use_volts_vdnap = 1;
-       else
-               return -ENODEV;
+       else {
+               rc = -ENODEV;
+               goto bail_noprops;
+       }
 
        /* Check 970FX for now */
        valp = of_get_property(cpunode, "cpu-version", NULL);
@@ -430,8 +432,11 @@ static int __init g5_neo2_cpufreq_init(struct device_node 
*cpunode)
         * supporting anything else.
         */
        valp = of_get_property(cpunode, "clock-frequency", NULL);
-       if (!valp)
-               return -ENODEV;
+       if (!valp) {
+               rc = -ENODEV;
+               goto bail_noprops;
+       }
+
        max_freq = (*valp)/1000;
        g5_cpu_freqs[0].frequency = max_freq;
        g5_cpu_freqs[1].frequency = max_freq/2;
-- 
2.25.1