Correct and improve validity checking of user supplied TIDs.
A tidctrl value of 0 is invalid.  Verify that the final
index is in range, not an intermediate value.
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167329105916.1472990.9915542468337924727.stgit@awfm-02.cornelisnetworks.comSigned-off-by: Leon Romanovsky <leon@kernel.org>