From 53219aa88a4c32c5900c7d8c2a45589502ef9d4a Mon Sep 17 00:00:00 2001
From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Thu, 21 Apr 2016 11:32:22 +0000
Subject: [PATCH] Properly setup arguments for if_resolvemulti() callback.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
---
 sys/ofed/drivers/infiniband/core/addr.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sys/ofed/drivers/infiniband/core/addr.c b/sys/ofed/drivers/infiniband/core/addr.c
index 2a918cb38ade..27ad05e9c5cf 100644
--- a/sys/ofed/drivers/infiniband/core/addr.c
+++ b/sys/ofed/drivers/infiniband/core/addr.c
@@ -310,13 +310,19 @@ static int addr_resolve(struct sockaddr *src_in,
 		return rdma_copy_addr(addr, ifp, ifp->if_broadcastaddr);
 	if (multi) {
 		struct sockaddr *llsa;
+		struct sockaddr_dl sdl;
+
+		sdl.sdl_len = sizeof(sdl);
+		llsa = (struct sockaddr *)&sdl;
+
+		if (ifp->if_resolvemulti == NULL)
+			return -EOPNOTSUPP;
 
 		error = ifp->if_resolvemulti(ifp, &llsa, dst_in);
 		if (error)
 			return -error;
 		error = rdma_copy_addr(addr, ifp,
 		    LLADDR((struct sockaddr_dl *)llsa));
-		free(llsa, M_IFMADDR);
 		if (error == 0)
 			memcpy(src_in, ifa->ifa_addr, ip_addr_size(ifa->ifa_addr));
 		return error;