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cfg80211: use lockdep to assert lock is held 

Instead of annotating with a comment, add a lockdep
annotation which also serves as documentation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-02-01 01:05:43 +01:00
parent 6b684db1db
commit 4b1af4792a
1 changed files with 4 additions and 2 deletions
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6
net/wireless/scan.c
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@ -41,22 +41,24 @@ static void bss_release(struct kref *ref)
kfree(bss);
}
/* must hold dev->bss_lock! */
static void __cfg80211_unlink_bss(struct cfg80211_registered_device *dev,
struct cfg80211_internal_bss *bss)
{
lockdep_assert_held(&dev->bss_lock);
list_del_init(&bss->list);
rb_erase(&bss->rbn, &dev->bss_tree);
kref_put(&bss->ref, bss_release);
}
/* must hold dev->bss_lock! */
static void __cfg80211_bss_expire(struct cfg80211_registered_device *dev,
unsigned long expire_time)
{
struct cfg80211_internal_bss *bss, *tmp;
bool expired = false;
lockdep_assert_held(&dev->bss_lock);
list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
if (atomic_read(&bss->hold))
continue;