CANCEL_WORK_SYNC(9)                       Driver Basics                       CANCEL_WORK_SYNC(9)



NAME
       cancel_work_sync - cancel a work and wait for it to finish

SYNOPSIS
       bool cancel_work_sync(struct work_struct * work);

ARGUMENTS
       work
           the work to cancel

DESCRIPTION
       Cancel work and wait for its execution to finish. This function can be used even if the
       work re-queues itself or migrates to another workqueue. On return from this function, work
       is guaranteed to be not pending or executing on any CPU.

       cancel_work_sync(delayed_work->work) must not be used for delayed_work's. Use
       cancel_delayed_work_sync instead.

       The caller must ensure that the workqueue on which work was last queued can't be destroyed
       before this function returns.

RETURN
       true if work was pending, false otherwise.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       CANCEL_WORK_SYNC(9)