diff options
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/Kconfig | 1 | ||||
| -rw-r--r-- | net/wireless/reg.c | 11 | ||||
| -rw-r--r-- | net/wireless/wext-core.c | 5 |
3 files changed, 14 insertions, 3 deletions
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 27026f587fa6..f620acd2a0f5 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -21,6 +21,7 @@ config CFG80211 tristate "cfg80211 - wireless configuration API" depends on RFKILL || !RFKILL select FW_LOADER + select CRC32 # may need to update this when certificates are changed and are # using a different algorithm, though right now they shouldn't # (this is here rather than below to allow it to be a module) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index bb72447ad960..8114bba8556c 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -5,7 +5,7 @@ * Copyright 2008-2011 Luis R. Rodriguez <mcgrof@qca.qualcomm.com> * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright 2017 Intel Deutschland GmbH - * Copyright (C) 2018 - 2019 Intel Corporation + * Copyright (C) 2018 - 2021 Intel Corporation * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -139,6 +139,11 @@ static const struct ieee80211_regdomain *get_cfg80211_regdom(void) return rcu_dereference_rtnl(cfg80211_regdomain); } +/* + * Returns the regulatory domain associated with the wiphy. + * + * Requires either RTNL or RCU protection + */ const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy) { return rcu_dereference_rtnl(wiphy->regd); @@ -2571,9 +2576,13 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy, if (IS_ERR(new_regd)) return; + rtnl_lock(); + tmp = get_wiphy_regdom(wiphy); rcu_assign_pointer(wiphy->regd, new_regd); rcu_free_regdom(tmp); + + rtnl_unlock(); } EXPORT_SYMBOL(wiphy_apply_custom_regulatory); diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c index 69102fda9ebd..76a80a41615b 100644 --- a/net/wireless/wext-core.c +++ b/net/wireless/wext-core.c @@ -896,8 +896,9 @@ out: int call_commit_handler(struct net_device *dev) { #ifdef CONFIG_WIRELESS_EXT - if ((netif_running(dev)) && - (dev->wireless_handlers->standard[0] != NULL)) + if (netif_running(dev) && + dev->wireless_handlers && + dev->wireless_handlers->standard[0]) /* Call the commit handler on the driver */ return dev->wireless_handlers->standard[0](dev, NULL, NULL, NULL); |