[PATCH] Revert "netpoll: Fix extra refcount release in netpoll_cleanup()"

[Bjorn Helgaas]

This reverts commit 543e3a8da5a4c453e992d5351ef405d5e32f27d7.

Direct callers of __netpoll_setup() depend on it to set np->dev,
so we can't simply move that assignment up to netpoll_stup().

Reported-by: Bart Van Assche <bart.vanass...@sandisk.com>
Signed-off-by: Bjorn Helgaas <bhelg...@google.com>
---
 net/core/netpoll.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a57bd17..94acfc8 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -603,6 +603,7 @@ int __netpoll_setup(struct netpoll *np, struct net_device 
*ndev)
        const struct net_device_ops *ops;
        int err;
 
+       np->dev = ndev;
        strlcpy(np->dev_name, ndev->name, IFNAMSIZ);
        INIT_WORK(&np->cleanup_work, netpoll_async_cleanup);
 
@@ -669,7 +670,6 @@ int netpoll_setup(struct netpoll *np)
                goto unlock;
        }
        dev_hold(ndev);
-       np->dev = ndev;
 
        if (netdev_master_upper_dev_get(ndev)) {
                np_err(np, "%s is a slave device, aborting\n", np->dev_name);
@@ -770,7 +770,6 @@ int netpoll_setup(struct netpoll *np)
        return 0;
 
 put:
-       np->dev = NULL;
        dev_put(ndev);
 unlock:
        rtnl_unlock();