[RTEMS Project] #2170: pthread_mutex_trylock() erroneously returns EDEADLK

[RTEMS trac]

#2170: pthread_mutex_trylock() erroneously returns EDEADLK
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 Reporter:  nick.withers  |       Owner:  joel.sherrill
     Type:  defect        |      Status:  new
 Priority:  normal        |   Milestone:  4.11
Component:  cpukit        |     Version:  HEAD
 Severity:  normal        |  Resolution:
 Keywords:                |
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Comment (by nick.withers):

 Wait... No, that's not going to work.

 pthread_mutex_lock() should return EDEADLK for
 CORE_MUTEX_STATUS_NESTING_NOT_ALLOWED if the mutex's already locked and
 pthread_mutex_trylock() should return EBUSY - so they presumably need to
 return different POSIX codes for the same RTEMS code?

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Ticket URL: <http://devel.rtems.org/ticket/2170#comment:4>
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