diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index cdf51c272c62..9e8e1de19b2e 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1331,6 +1331,9 @@ __rpcrdma_dma_map_regbuf(struct rpcrdma_ia *ia, struct rpcrdma_regbuf *rb)
 static void
 rpcrdma_dma_unmap_regbuf(struct rpcrdma_regbuf *rb)
 {
+	if (!rb)
+		return;
+
 	if (!rpcrdma_regbuf_is_mapped(rb))
 		return;
 
@@ -1346,9 +1349,6 @@ rpcrdma_dma_unmap_regbuf(struct rpcrdma_regbuf *rb)
 void
 rpcrdma_free_regbuf(struct rpcrdma_regbuf *rb)
 {
-	if (!rb)
-		return;
-
 	rpcrdma_dma_unmap_regbuf(rb);
 	kfree(rb);
 }