[PATCH v2] powerpc/pseries: fix potential memory leak in init_cpu_associativity()

[Wang Yufen]

If the vcpu_associativity alloc memory successfully but the
pcpu_associativity fails to alloc memory, the vcpu_associativity
memory leaks.

Fixes: d62c8deeb6e6 ("powerpc/pseries: Provide vcpu dispatch statistics")
Signed-off-by: Wang Yufen <wangyu...@huawei.com>
---
 arch/powerpc/platforms/pseries/lpar.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/lpar.c 
b/arch/powerpc/platforms/pseries/lpar.c
index 97ef649..bb24545 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -524,8 +524,10 @@ static ssize_t vcpudispatch_stats_write(struct file *file, 
const char __user *p,
 
        if (cmd) {
                rc = init_cpu_associativity();
-               if (rc)
+               if (rc) {
+                       destroy_cpu_associativity();
                        goto out;
+               }
 
                for_each_possible_cpu(cpu) {
                        disp = per_cpu_ptr(&vcpu_disp_data, cpu);
-- 
1.8.3.1