cfg80211: add assert_cfg80211_lock() to ensure proper protection

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 39d40d1e06d..e347093ccc7 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -7,7 +7,6 @@
 #include <linux/if.h>
 #include <linux/module.h>
 #include <linux/err.h>
-#include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/nl80211.h>
 #include <linux/debugfs.h>
@@ -50,6 +49,8 @@ cfg80211_drv_by_wiphy_idx(int wiphy_idx)
         if (!wiphy_idx_valid(wiphy_idx))
                 return NULL;
 
+        assert_cfg80211_lock();
+
         list_for_each_entry(drv, &cfg80211_drv_list, list) {
                 if (drv->wiphy_idx == wiphy_idx) {
                         result = drv;
@@ -69,6 +70,8 @@ __cfg80211_drv_from_info(struct genl_info *info)
         struct net_device *dev;
         int err = -EINVAL;
 
+        assert_cfg80211_lock();
+
         if (info->attrs[NL80211_ATTR_WIPHY]) {
                 bywiphyidx = cfg80211_drv_by_wiphy_idx(
                                 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));