From mboxrd@z Thu Jan 1 00:00:00 1970 From: peter.ujfalusi@ti.com (Peter Ujfalusi) Date: Mon, 11 Jan 2016 10:38:01 +0200 Subject: [PATCH] dmaengine: edma: Fix paRAM slot allocation for entry channel 0 Message-ID: <1452501481-5543-1-git-send-email-peter.ujfalusi@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org edma_alloc_slot was not checking the channel mapping support existence when slot 0 has been requested (used as entry slot for channel/event 0). Signed-off-by: Peter Ujfalusi --- drivers/dma/edma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 50584015e046..d92d65549406 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -484,7 +484,7 @@ static void edma_read_slot(struct edma_cc *ecc, unsigned slot, */ static int edma_alloc_slot(struct edma_cc *ecc, int slot) { - if (slot > 0) { + if (slot >= 0) { slot = EDMA_CHAN_SLOT(slot); /* Requesting entry paRAM slot for a HW triggered channel. */ if (ecc->chmap_exist && slot < ecc->num_channels) -- 2.6.4