netvsc: fix dereference before null check errors
ndev is being checked to see if it is a null pointer however before the null check ndev is being dereferenced; hence there is a potential null pointer dereference bug that needs fixing. Fix this by only dereferencing ndev after the null check. Detected by CoverityScan, CID#1420760, CID#140761 ("Dereference before null check") Signed-off-by: NColin Ian King <colin.king@canonical.com> Reviewed-by: NHaiyang Zhang <haiyangz@microsoft.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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