diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c
index 81c7b73695d26c4898735b7e58abcd49bca398d6..3b9afccaaade824370f5c0ea0d6d6ceb519e6090 100644
--- a/drivers/infiniband/hw/qib/qib_keys.c
+++ b/drivers/infiniband/hw/qib/qib_keys.c
@@ -61,7 +61,7 @@ int qib_alloc_lkey(struct qib_mregion *mr, int dma_region)
 	if (dma_region) {
 		struct qib_mregion *tmr;
 
-		tmr = rcu_dereference(dev->dma_mr);
+		tmr = rcu_access_pointer(dev->dma_mr);
 		if (!tmr) {
 			qib_get_mr(mr);
 			rcu_assign_pointer(dev->dma_mr, mr);