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b7a90ba172
As CSI->MEM channel keeps on writing the buffer which is set to ready latestly and raising up end of frame interrupts, the current v4l2 capture realization mechanism is not appropriate for this channel. This patch will update the idmac buffer to a dummy buffer whenever there is no buffers queued by the user. Signed-off-by: Liu Ying <b17645@freescale.com>