[ Upstream commit 
be4363bdf0ce9530f15aa0a03d1060304d116b15 ]
There is an extra rcu_read_unlock left in netvsc_recv_callback(),
after a previous patch that removes RCU from this function.
This patch removes the extra RCU unlock.
Fixes: 345ac08990b8 ("hv_netvsc: pass netvsc_device to receive callback")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 
 
        if (unlikely(!skb)) {
                ++net_device_ctx->eth_stats.rx_no_memory;
-               rcu_read_unlock();
                return NVSP_STAT_FAIL;
        }