/*
* Push metadata to consumer socket.
*
- * RCU read-side lock must be held to guarantee existance of socket.
+ * RCU read-side lock must be held to guarantee existence of socket.
* Must be called with the ust app session lock held.
* Must be called with the registry lock held.
*
* socket to send the metadata is retrieved from consumer, if sock
* is not NULL we use it to send the metadata.
* RCU read-side lock must be held while calling this function,
- * therefore ensuring existance of registry. It also ensures existance
+ * therefore ensuring existence of registry. It also ensures existence
* of socket throughout this function.
*
* Return 0 on success else a negative error.