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-rw-r--r--mm/dmapool.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/dmapool.c b/mm/dmapool.c
index 3df063706f53..4df2de77e069 100644
--- a/mm/dmapool.c
+++ b/mm/dmapool.c
@@ -311,6 +311,8 @@ void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags,
size_t offset;
void *retval;
+ might_sleep_if(mem_flags & __GFP_WAIT);
+
spin_lock_irqsave(&pool->lock, flags);
restart:
list_for_each_entry(page, &pool->page_list, page_list) {