Thomas Gleixner 9f4533cd73 timerqueue: Document return values of timerqueue_add/del()
The return values of timerqueue_add/del() are not documented in the kernel doc
comment. Add proper documentation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: rt@linutronix.de
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>
Link: https://lkml.kernel.org/r/20171222145337.872681338@linutronix.de
2017-12-29 23:13:10 +01:00
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