6.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wang Yufen <wangyufen@xxxxxxxxxx>
[ Upstream commit 95f1a128cd728a7257d78e868f1f5a145fc43736 ]
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@xxxxxxxxxx>
Reviewed-by: "Naveen N. Rao" <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://msgid.link/1671003983-10794-1-git-send-email-wangyufen@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 cb2f1211f7ebf..d1fc396bb1de4 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -525,8 +525,10 @@ 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);
--
2.42.0
