diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mempool.c | 3 |
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) { unsigned long flags; + if (unlikely(element == NULL)) + return; + smp_mb(); if (pool->curr_nr < pool->min_nr) { spin_lock_irqsave(&pool->lock, flags); |