IB/rxe: Make function rxe_pool_cleanup return void

Since the function always returns 0 make it void.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/sw/rxe/rxe_pool.c

@@ -241,7 +241,7 @@ static void rxe_pool_put(struct rxe_pool *pool)
 	kref_put(&pool->ref_cnt, rxe_pool_release);
 }
 
-int rxe_pool_cleanup(struct rxe_pool *pool)
+void rxe_pool_cleanup(struct rxe_pool *pool)
 {
 	unsigned long flags;
 
@@ -253,8 +253,6 @@ int rxe_pool_cleanup(struct rxe_pool *pool)
 	write_unlock_irqrestore(&pool->pool_lock, flags);
 
 	rxe_pool_put(pool);
-
-	return 0;
 }
 
 static u32 alloc_index(struct rxe_pool *pool)

drivers/infiniband/sw/rxe/rxe_pool.h

@@ -126,7 +126,7 @@ int rxe_pool_init(struct rxe_dev *rxe, struct rxe_pool *pool,
 		  enum rxe_elem_type type, u32 max_elem);
 
 /* free resources from object pool */
-int rxe_pool_cleanup(struct rxe_pool *pool);
+void rxe_pool_cleanup(struct rxe_pool *pool);
 
 /* allocate an object from pool */
 void *rxe_alloc(struct rxe_pool *pool);