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mac80211: minor cleanup to mesh state locking 

First time I tried smatch, and it says:
mesh_hwmp.c +870 mesh_queue_preq(21) error: double lock 'bottom_half:'
mesh_hwmp.c +873 mesh_queue_preq(24) error: double unlock 'bottom_half:'
mesh_hwmp.c +886 mesh_queue_preq(37) error: double unlock 'bottom_half:'

Which is indeed true -- there's no point in disabling BHs
again if we just did that a few lines earlier, so remove.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-11-18 15:27:31 +01:00 committed by John W. Linville
parent 1e7aecc26b
commit f2dc7989bf
1 changed files with 3 additions and 3 deletions
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6
net/mac80211/mesh_hwmp.c
View File

@ -867,9 +867,9 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
return;
}
spin_lock_bh(&mpath->state_lock);
spin_lock(&mpath->state_lock);
if (mpath->flags & MESH_PATH_REQ_QUEUED) {
spin_unlock_bh(&mpath->state_lock);
spin_unlock(&mpath->state_lock);
spin_unlock_bh(&ifmsh->mesh_preq_queue_lock);
kfree(preq_node);
return;
@ -879,7 +879,7 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
preq_node->flags = flags;
mpath->flags |= MESH_PATH_REQ_QUEUED;
spin_unlock_bh(&mpath->state_lock);
spin_unlock(&mpath->state_lock);
list_add_tail(&preq_node->list, &ifmsh->preq_queue.list);
++ifmsh->preq_queue_len;