Commit 6ab55b21 authored Nov 13, 2014 by Stefan Agner Committed by Vinod Koul Dec 08, 2014

dmaengine: fsl-edma: fix calculation of remaining bytes



If the current transfer control descriptor (TCD) was not yet started,
the address will be the same as the initial address. Hence test if the
current address is less than or equal to the start address of each TCD.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 345e3123

drivers/dma/fsl-edma.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -386,7 +386,7 @@ static size_t fsl_edma_desc_residue(struct fsl_edma_chan *fsl_chan,
		&(edesc->tcd[i].vtcd->daddr));

		len -= size;
		if (cur_addr > dma_addr && cur_addr < dma_addr + size) {
		if (cur_addr >= dma_addr && cur_addr < dma_addr + size) {
		len += dma_addr + size - cur_addr;
		break;
		}