3.16.60-rc1 review patch. If anyone has any objections, please let me know.
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From: Ben Hutchings ben@decadent.org.uk
register_netdevice() will call the device's ndo_uninit operation if registration fails after it calls the ndo_init operation. However ppp_dev_uninit() uses ppp->ppp_net which is currently not set until after register_netdevice() returns.
This was fixed upstream as part of commit 6d934c70db6e "ppp: add rtnetlink device creation support".
Signed-off-by: Ben Hutchings ben@decadent.org.uk --- --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -2732,6 +2732,7 @@ static struct ppp *ppp_create_interface(
ppp = netdev_priv(dev); ppp->dev = dev; + ppp->ppp_net = net; ppp->mru = PPP_MRU; init_ppp_file(&ppp->file, INTERFACE); ppp->file.hdrlen = PPP_HDRLEN - 2; /* don't count proto bytes */ @@ -2801,8 +2802,6 @@ static struct ppp *ppp_create_interface( goto out2; }
- ppp->ppp_net = net; - atomic_inc(&ppp_unit_count); mutex_unlock(&pn->all_ppp_mutex); rtnl_unlock();