From 6ab55b214c625f4d56199f7ebd0b419f43f23bb2 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Thu, 13 Nov 2014 12:56:02 +0100 Subject: [PATCH] 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 Signed-off-by: Vinod Koul --- drivers/dma/fsl-edma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c index 3c5711d5fe97..58c6fc7e902e 100644 --- a/drivers/dma/fsl-edma.c +++ b/drivers/dma/fsl-edma.c @@ -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; } -- 2.39.5