RDMA/core: Fix error code in stat_get_doit_qp()

We need to set the error codes on these paths.  Currently the only
possible error code is -EMSGSIZE so that's what the patch uses.

Fixes: 83c2c1fcbd08 ("RDMA/nldev: Allow get counter mode through RDMA netlink")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190809101311.GA17867@mwanda
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 783e465..87d40d1 100644 (file)
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -1952,12 +1952,16 @@ static int stat_get_doit_qp(struct sk_buff *skb, struct nlmsghdr *nlh,
 
        if (fill_nldev_handle(msg, device) ||
            nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port) ||
-           nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_MODE, mode))
+           nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_MODE, mode)) {
+               ret = -EMSGSIZE;
                goto err_msg;
+       }
 
        if ((mode == RDMA_COUNTER_MODE_AUTO) &&
-           nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK, mask))
+           nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK, mask)) {
+               ret = -EMSGSIZE;
                goto err_msg;
+       }
 
        nlmsg_end(msg, nlh);
        ib_device_put(device);