[SPARC] Videopix Frame Grabber: Convert device_lock_sem to mutex
Videopix Frame Grabber: Convert the semaphore device_lock_sem to the mutex API Signed-off-by: NMatthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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