diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/macvtap.c | 2 | ||||
| -rw-r--r-- | drivers/net/ppp/ppp_generic.c | 20 | ||||
| -rw-r--r-- | drivers/net/tun.c | 7 | ||||
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c | 3 |
4 files changed, 29 insertions, 3 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 79de9608ac48..ed96fdefd8e5 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -1117,6 +1117,8 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd, case TUNSETSNDBUF: if (get_user(s, sp)) return -EFAULT; + if (s <= 0) + return -EINVAL; q->sk.sk_sndbuf = s; return 0; diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index e5bb870b5461..dc454138d600 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -1110,7 +1110,17 @@ ppp_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats64) static struct lock_class_key ppp_tx_busylock; static int ppp_dev_init(struct net_device *dev) { + struct ppp *ppp; + dev->qdisc_tx_busylock = &ppp_tx_busylock; + + ppp = netdev_priv(dev); + /* Let the netdevice take a reference on the ppp file. This ensures + * that ppp_destroy_interface() won't run before the device gets + * unregistered. + */ + atomic_inc(&ppp->file.refcnt); + return 0; } @@ -1133,6 +1143,15 @@ static void ppp_dev_uninit(struct net_device *dev) wake_up_interruptible(&ppp->file.rwait); } +static void ppp_dev_priv_destructor(struct net_device *dev) +{ + struct ppp *ppp; + + ppp = netdev_priv(dev); + if (atomic_dec_and_test(&ppp->file.refcnt)) + ppp_destroy_interface(ppp); +} + static const struct net_device_ops ppp_netdev_ops = { .ndo_init = ppp_dev_init, .ndo_uninit = ppp_dev_uninit, @@ -1150,6 +1169,7 @@ static void ppp_setup(struct net_device *dev) dev->tx_queue_len = 3; dev->type = ARPHRD_PPP; dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; + dev->destructor = ppp_dev_priv_destructor; netif_keep_dst(dev); } diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 89ad2b750531..1b0184b3818a 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1685,6 +1685,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) if (!dev) return -ENOMEM; + err = dev_get_valid_name(net, dev, name); + if (err < 0) + goto err_free_dev; dev_net_set(dev, net); dev->rtnl_link_ops = &tun_link_ops; @@ -2072,6 +2075,10 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, ret = -EFAULT; break; } + if (sndbuf <= 0) { + ret = -EINVAL; + break; + } tun->sndbuf = sndbuf; tun_set_sndbuf(tun); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c index 5fecae0ba52e..83e5aa6a9f28 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c @@ -4295,9 +4295,6 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); if (err < 0) brcmf_err("setting AP mode failed %d\n", err); - err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0); - if (err < 0) - brcmf_err("setting INFRA mode failed %d\n", err); if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) brcmf_fil_iovar_int_set(ifp, "mbss", 0); err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, |