From: Andrey Shvetsov <andrey.shvet...@k2l.de>

Since not all HDMs implement the callback request_netinfo, this patch
adds checking of its availability.

Signed-off-by: Andrey Shvetsov <andrey.shvet...@k2l.de>
Signed-off-by: Christian Gromm <christian.gr...@microchip.com>
---
 drivers/staging/most/aim-network/networking.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/most/aim-network/networking.c 
b/drivers/staging/most/aim-network/networking.c
index 5822902..03ddbd2 100644
--- a/drivers/staging/most/aim-network/networking.c
+++ b/drivers/staging/most/aim-network/networking.c
@@ -203,7 +203,8 @@ static int most_nd_open(struct net_device *dev)
        else
                netif_dormant_on(dev);
        netif_wake_queue(dev);
-       nd->iface->request_netinfo(nd->iface, nd->tx.ch_id);
+       if (nd->iface->request_netinfo)
+               nd->iface->request_netinfo(nd->iface, nd->tx.ch_id);
        return 0;
 }
 
-- 
1.9.1

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