Failure to acquire the semaphore would lead to a spurious release
of the semaphore in several functions. Do not release a semaphore
that you did not get.
Signed-off-by: NMark Rustad <mark.d.rustad@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>