Commit aa3ee5f5 authored Sep 26, 2015 by Axel Lin Committed by Vinod Koul Oct 01, 2015

dmaengine: zxdma: Fix off-by-one for testing valid pchan request



The valid pchan range is 0 ~ d->dma_requests - 1.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 0be2136b

drivers/dma/zx296702_dma.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -739,7 +739,7 @@ static struct dma_chan zx_of_dma_simple_xlate(struct of_phandle_args dma_spec,
		struct dma_chan *chan;
		struct zx_dma_chan *c;

		if (request > d->dma_requests)
		if (request >= d->dma_requests)
		return NULL;

		chan = dma_get_any_slave_channel(&d->slave);