tree ed79b38ae14b46ab094300e307b4400263c307e6
parent 6fd147b6126456464cb0f864c2340a0e88a447fa
author James Harris <james.harris@intel.com> 1614901647 -0800
committer Anas Nashif <anas.nashif@intel.com> 1615034383 -0500

kernel: sem: handle resets with outstanding waiting threads

Previously, a k_sem_reset with any outstanding waiting threads would
result in the semaphore in an inconsistent state, with more threads
waiting in the wait_q than the count would indicate.

Explicitly -EAGAIN any waiting threads upon k_sem_reset, to
ensure safety here.

Signed-off-by: James Harris <james.harris@intel.com>