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

Wang Yufen wangyufen at huawei.com
Thu Dec 8 12:32:45 AEDT 2022


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 <wangyufen at huawei.com>
---
 arch/powerpc/platforms/pseries/lpar.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 97ef649..501ee6c 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -211,6 +211,7 @@ static int init_cpu_associativity(void)
 
 	if (!vcpu_associativity || !pcpu_associativity) {
 		pr_err("error allocating memory for associativity information\n");
+		kfree(vcpu_associativity);
 		return -ENOMEM;
 	}
 
-- 
1.8.3.1



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