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Merge "net: qrtr: hold ept sem lock before node lookup"

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qctecmdr 2020-09-16 21:04:09 -07:00 • committed by Gerrit - the friendly Code Review server
commit b7a9f3bf0f
1 changed files with 2 additions and 0 deletions
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net/qrtr/qrtr.c
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@ -643,10 +643,12 @@ static struct qrtr_node *qrtr_node_lookup(unsigned int nid)
struct qrtr_node *node;
unsigned long flags;
down_read(&qrtr_epts_lock);
spin_lock_irqsave(&qrtr_nodes_lock, flags);
node = radix_tree_lookup(&qrtr_nodes, nid);
node = qrtr_node_acquire(node);
spin_unlock_irqrestore(&qrtr_nodes_lock, flags);
up_read(&qrtr_epts_lock);
return node;
}