drm/i915/gvt: fix lock not released bug for dispatch_workload() err path
Need to be careful to release struct_mutext when request alloc
failed and take consistent handling for return status as with
normal go out path. Ensure to check correct workload request in
complete path too.
v2: Add Fixes note
Fixes: 90d27a1b180e ("drm/i915/gvt: fix deadlock in workload_thread") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Pei Zhang <pei.zhang@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>