From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Date: Thu, 03 Apr 2014 07:29:33 +0000 Subject: [patch] dmaengine: sirf: off by one in of_dma_sirfsoc_xlate() Message-Id: <20140403072933.GD14286@mwanda> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kernel-janitors@vger.kernel.org The ">" here should be ">=" or we are one step beyond the end of the sdma->channels[] array. Fixes: 2e041c94628c ('dmaengine: sirf: enable generic dt binding for dma channels') Signed-off-by: Dan Carpenter diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c index a1bd829..03f7820 100644 --- a/drivers/dma/sirf-dma.c +++ b/drivers/dma/sirf-dma.c @@ -666,7 +666,7 @@ static struct dma_chan *of_dma_sirfsoc_xlate(struct of_phandle_args *dma_spec, struct sirfsoc_dma *sdma = ofdma->of_dma_data; unsigned int request = dma_spec->args[0]; - if (request > SIRFSOC_DMA_CHANNELS) + if (request >= SIRFSOC_DMA_CHANNELS) return NULL; return dma_get_slave_channel(&sdma->channels[request].chan);