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-rw-r--r--mm/mempool.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/mempool.c b/mm/mempool.c
index cc1ca86dfc2..3e8f1fed0e1 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -263,6 +263,9 @@ void mempool_free(void *element, mempool_t *pool)
{
unsigned long flags;
+ if (unlikely(element == NULL))
+ return;
+
smp_mb();
if (pool->curr_nr < pool->min_nr) {
spin_lock_irqsave(&pool->lock, flags);