There is a narrow window, in which the critical section is
not fully protected which possibly could lead to use after free.
To avoid this, hold the row lock and validate the state prior
to processing the dma fence.
CRs-Fixed: 3273450
Change-Id: Ib1f09e62a5060a38b5cd8f3d4594bce2e533b3d3
Signed-off-by: Karthik Anantha Ram <quic_kartanan@quicinc.com>
167437bdeb