IB/hfi1: Remove unnecessary if check

A for loop condition of data_iovs in user_sdma_free_request
is unnecessarily repeated before the loop as an if check.

Remove the if enveloping the loop.
Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/hfi1/user_sdma.c

@@ -1428,6 +1428,8 @@ static inline void pq_update(struct hfi1_user_sdma_pkt_q *pq)
 
 static void user_sdma_free_request(struct user_sdma_request *req, bool unpin)
 {
+	int i;
+
 	if (!list_empty(&req->txps)) {
 		struct sdma_txreq *t, *p;
 
@@ -1439,12 +1441,10 @@ static void user_sdma_free_request(struct user_sdma_request *req, bool unpin)
 			kmem_cache_free(req->pq->txreq_cache, tx);
 		}
 	}
-	if (req->data_iovs) {
-		struct sdma_mmu_node *node;
-		int i;
 
 	for (i = 0; i < req->data_iovs; i++) {
-			node = req->iovs[i].node;
+		struct sdma_mmu_node *node = req->iovs[i].node;
+
 		if (!node)
 			continue;
 
@@ -1454,7 +1454,7 @@ static void user_sdma_free_request(struct user_sdma_request *req, bool unpin)
 		else
 			atomic_dec(&node->refcount);
 	}
-	}
+
 	kfree(req->tids);
 	clear_bit(req->info.comp_idx, req->pq->req_in_use);
 }