dmaengine: fix for cookie changes and merge

Fixed trivial issues in drivers:
	drivers/dma/imx-sdma.c
	drivers/dma/intel_mid_dma.c
	drivers/dma/ioat/dma_v3.c
	drivers/dma/iop-adma.c
	drivers/dma/sirf-dma.c
	drivers/dma/timb_dma.c

Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index d599d96..2449812 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -477,6 +477,7 @@
 						dma_cookie_t cookie,
 						struct dma_tx_state *txstate)
 {
+	struct intel_mid_dma_chan *midc = to_intel_mid_dma_chan(chan);
 	enum dma_status ret;
 
 	ret = dma_cookie_status(chan, cookie, txstate);