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-rw-r--r--arch/powerpc/mm/mmu_context_64.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mmu_context_64.c b/arch/powerpc/mm/mmu_context_64.c
index 65d18dca266..e2051efa09c 100644
--- a/arch/powerpc/mm/mmu_context_64.c
+++ b/arch/powerpc/mm/mmu_context_64.c
@@ -44,7 +44,9 @@ again:
return err;
if (index > MAX_CONTEXT) {
+ spin_lock(&mmu_context_lock);
idr_remove(&mmu_context_idr, index);
+ spin_unlock(&mmu_context_lock);
return -ENOMEM;
}