Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1305950

[PATCH] dmaengine: edma: Fix paRAM slot allocation for entry channel 0

Show all headers | View 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

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH] dmaengine: edma: Fix paRAM slot allocation for entry channel 0 Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-01-11 09:40 +0100
  Re: [PATCH] dmaengine: edma: Fix paRAM slot allocation for entry  channel 0 Vinod Koul <vinod.koul@intel.com> - 2016-01-13 14:40 +0100

csiph-web