diff options
| author | John W. Linville <linville@tuxdriver.com> | 2011-07-11 14:46:59 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-07-11 14:46:59 -0400 |
| commit | d8598981146241064993e371cea8333f59553cb6 (patch) | |
| tree | bb92a46fb9fe75ee9c4fdbbe0a5b6eafc6818ef3 /net/wireless/nl80211.c | |
| parent | 8ae2e12f1534e647d4a816755e5a09c2de6f9fca (diff) | |
| parent | 34459512ffa7236c849466e3bd604801389734e1 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Conflicts:
drivers/net/wireless/ath/ath5k/sysfs.c
net/bluetooth/l2cap_core.c
net/mac80211/wpa.c
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 491b0ba40c43..6a82c898f831 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3470,9 +3470,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) return -EINVAL; - if (rdev->sched_scan_req) - return -EINPROGRESS; - if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) return -EINVAL; @@ -3511,12 +3508,21 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (ie_len > wiphy->max_scan_ie_len) return -EINVAL; + mutex_lock(&rdev->sched_scan_mtx); + + if (rdev->sched_scan_req) { + err = -EINPROGRESS; + goto out; + } + request = kzalloc(sizeof(*request) + sizeof(*request->ssids) * n_ssids + sizeof(*request->channels) * n_channels + ie_len, GFP_KERNEL); - if (!request) - return -ENOMEM; + if (!request) { + err = -ENOMEM; + goto out; + } if (n_ssids) request->ssids = (void *)&request->channels[n_channels]; @@ -3614,6 +3620,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, out_free: kfree(request); out: + mutex_unlock(&rdev->sched_scan_mtx); return err; } @@ -3621,12 +3628,17 @@ static int nl80211_stop_sched_scan(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; + int err; if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || !rdev->ops->sched_scan_stop) return -EOPNOTSUPP; - return __cfg80211_stop_sched_scan(rdev, false); + mutex_lock(&rdev->sched_scan_mtx); + err = __cfg80211_stop_sched_scan(rdev, false); + mutex_unlock(&rdev->sched_scan_mtx); + + return err; } static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |