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Usage of Semaphore with a workqueue

Hello list,

Consider a case where I have a workqueue, a work is submitted to a it
from some interrupt handler
Lets say, some where in a code, it tries to get some semaphore to
enter into a critical section,
and fails to get it, sholud I still return from the work function by
returning ERESTARTSYS?
Kindly somebody clarify this to me

Thanks in advance
Devesh

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