From 4ae7152e0bf98ac91a2835dce07f6fdb9f6407bd Mon Sep 17 00:00:00 2001
From: Sean Hefty <sean.hefty@intel.com>
Date: Wed, 29 May 2013 10:09:16 -0700
Subject: [PATCH] RDMA/cma: Verify that source and dest sa_family are the same

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/cma.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 524cf986d9fa..9f6e719cf620 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1849,14 +1849,9 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 	struct rdma_addr *addr = &route->addr;
 	struct cma_work *work;
 	int ret;
-	struct sockaddr_in *src_addr = (struct sockaddr_in *)&route->addr.src_addr;
-	struct sockaddr_in *dst_addr = (struct sockaddr_in *)&route->addr.dst_addr;
 	struct net_device *ndev = NULL;
 	u16 vid;
 
-	if (src_addr->sin_family != dst_addr->sin_family)
-		return -EINVAL;
-
 	work = kzalloc(sizeof *work, GFP_KERNEL);
 	if (!work)
 		return -ENOMEM;
@@ -2132,6 +2127,9 @@ int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
 			return ret;
 	}
 
+	if (cma_family(id_priv) != dst_addr->sa_family)
+		return -EINVAL;
+
 	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_ADDR_QUERY))
 		return -EINVAL;
 
-- 
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