netdev - [PATCH net 5/5] ibmvnic: init completion struct before requesting long term mapped buffers

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Date:   Wed, 25 Jan 2017 15:02:23 -0600
From:   Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>
To:     netdev@...r.kernel.org
Cc:     linuxppc-dev@...ts.ozlabs.org, wvoigt@...ibm.com,
        nfont@...ux.vnet.ibm.com, jallen@...ux.vnet.ibm.com,
        tlfalcon@...ux.vnet.ibm.com
Subject: [PATCH net 5/5] ibmvnic: init completion struct before requesting long term mapped buffers

Initialize this completion structure before requesting that
a buffer be long-term mapped . This fix resolves a bug where firmware
sends a response before the structure is initialized.

Signed-off-by: John Allen <jallen@...ux.vnet.ibm.com>
Signed-off-by: Nathan Fontenot <nfont@...ux.vnet.ibm.com>
Signed-off-by: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index ec6c5fe..d1ffc61 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -189,9 +189,9 @@ static int alloc_long_term_buff(struct ibmvnic_adapter *adapter,
 	}
 	ltb->map_id = adapter->map_id;
 	adapter->map_id++;
+	init_completion(&adapter->fw_done);
 	send_request_map(adapter, ltb->addr,
 			 ltb->size, ltb->map_id);
-	init_completion(&adapter->fw_done);
 	wait_for_completion(&adapter->fw_done);
 	return 0;
 }
-- 
1.8.3.1