staging: brcm80211: replace semaphore by wait_queue for sysioc thread
The sysioc thread was triggered using a semaphore. Now it waits for a wake_up() on its wait queue and the semaphore has been removed as the semaphore serves another purpose. This removes a checkpatch warning for dhd_linux.c. Signed-off-by: Arend van Spriel <arend@broadcom.com> Reviewed-by: Roland Vossen <rvossen@broadcom.com> Reviewed-by: Franky Lin <frankyl@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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