netpoll: Fix device name check in netpoll_setup()
Apparently netpoll_setup() assumes that netpoll.dev_name is a pointer when checking if the device name is set: if (np->dev_name) { ... However the field is a character array, therefore the condition always yields true. Check instead whether the first byte of the array has a non-zero value. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -666,7 +666,7 @@ int netpoll_setup(struct netpoll *np)
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int err;
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rtnl_lock();
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if (np->dev_name) {
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if (np->dev_name[0]) {
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struct net *net = current->nsproxy->net_ns;
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ndev = __dev_get_by_name(net, np->dev_name);
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}
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