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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 cc1ca86dfc24..3e8f1fed0e1f 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -263,6 +263,9 @@ void mempool_free(void *element, mempool_t *pool)
263{ 263{
264 unsigned long flags; 264 unsigned long flags;
265 265
266 if (unlikely(element == NULL))
267 return;
268
266 smp_mb(); 269 smp_mb();
267 if (pool->curr_nr < pool->min_nr) { 270 if (pool->curr_nr < pool->min_nr) {
268 spin_lock_irqsave(&pool->lock, flags); 271 spin_lock_irqsave(&pool->lock, flags);