From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <vinod.koul@intel.com>, <dan.j.williams@intel.com>
Cc: <dmaengine@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-omap@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <nsekhar@ti.com>,
<tony@atomide.com>
Subject: [PATCH] dmaengine: edma: Fix paRAM slot allocation for entry channel 0
Date: Mon, 11 Jan 2016 10:38:01 +0200 [thread overview]
Message-ID: <1452501481-5543-1-git-send-email-peter.ujfalusi@ti.com> (raw)
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 <peter.ujfalusi@ti.com>
---
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
next reply other threads:[~2016-01-11 8:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-11 8:38 Peter Ujfalusi [this message]
2016-01-13 13:39 ` Vinod Koul
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