diff options
Diffstat (limited to 'net/wireless/core.c')
| -rw-r--r-- | net/wireless/core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c index d07f57c906d..71b6b3a9cf1 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -413,6 +413,18 @@ int wiphy_register(struct wiphy *wiphy) int i; u16 ifmodes = wiphy->interface_modes; + if (WARN_ON(wiphy->addresses && !wiphy->n_addresses)) + return -EINVAL; + + if (WARN_ON(wiphy->addresses && + !is_zero_ether_addr(wiphy->perm_addr) && + memcmp(wiphy->perm_addr, wiphy->addresses[0].addr, + ETH_ALEN))) + return -EINVAL; + + if (wiphy->addresses) + memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN); + /* sanity check ifmodes */ WARN_ON(!ifmodes); ifmodes &= ((1 << __NL80211_IFTYPE_AFTER_LAST) - 1) & ~1; |