netdev - [PATCH net-next 2/6] sfc: allow asynchronous MCDI without completion function

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Date:	Thu, 11 Aug 2016 13:01:21 +0100
From:	Bert Kenward <bkenward@...arflare.com>
To:	Dave Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>,
	linux-net-drivers <linux-net-drivers@...arflare.com>
Subject: [PATCH net-next 2/6] sfc: allow asynchronous MCDI without completion
 function

Signed-off-by: Bert Kenward <bkenward@...arflare.com>
---
 drivers/net/ethernet/sfc/mcdi.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index d28e7dd..9fbc12a 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -548,7 +548,10 @@ static bool efx_mcdi_complete_async(struct efx_mcdi_iface *mcdi, bool timeout)
 		efx_mcdi_display_error(efx, async->cmd, async->inlen, errbuf,
 				       err_len, rc);
 	}
-	async->complete(efx, async->cookie, rc, outbuf, data_len);
+
+	if (async->complete)
+		async->complete(efx, async->cookie, rc, outbuf,
+				min(async->outlen, data_len));
 	kfree(async);
 
 	efx_mcdi_release(mcdi);
-- 
2.7.4