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Fix some simple pointer arithmetic errors in the deterministic submit path. The lockless allocator was doing a subtraction to determine the correct offset of the element to free. However, this subtraction was using the base address and a numeric offset - not a pointer offset. Thus the difference computed was in bytes not in elements of the block size. The fix is simple: just divide by the block size. Also this modifies the debugging statement a bit so that a bit more information is printed at more useful times. Lastly, a pointer to numeric cast was fixed in the fence code. Change-Id: I514724205f1b73805b21e979481a13ac689f3482 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1538905 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Konsta Holtta <kholtta@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>