ftrace: Fix some typos in comment

	/*

	 * For static tracing, we need to be a bit more careful.

	 * The function change takes affect immediately. Thus,

	 * we need to coorditate the setting of the function_trace_ops

	 * we need to coordinate the setting of the function_trace_ops

	 * with the setting of the ftrace_trace_function.

	 *

	 * Set the function to the list ops, which will call the

{

	/*

	 * The function record is a match if it exists in the filter

	 * hash and not in the notrace hash. Note, an emty hash is

	 * hash and not in the notrace hash. Note, an empty hash is

	 * considered a match for the filter hash, but an empty

	 * notrace hash is considered not in the notrace hash.

	 */

		synchronize_rcu_tasks_rude();

		/*

		 * When the kernel is preeptive, tasks can be preempted

		 * When the kernel is preemptive, tasks can be preempted

		 * while on a ftrace trampoline. Just scheduling a task on

		 * a CPU is not good enough to flush them. Calling

		 * synchornize_rcu_tasks() will wait for those tasks to

 * @ip: The instruction pointer address to map @data to

 * @data: The data to map to @ip

 *

 * Returns 0 on succes otherwise an error.

 * Returns 0 on success otherwise an error.

 */

int ftrace_func_mapper_add_ip(struct ftrace_func_mapper *mapper,

			      unsigned long ip, void *data)

	/*

	 * Note, there's a small window here that the func_hash->filter_hash

	 * may be NULL or empty. Need to be carefule when reading the loop.

	 * may be NULL or empty. Need to be careful when reading the loop.

	 */

	mutex_lock(&probe->ops.func_hash->regex_lock);