[3.16.y-ckt stable] Patch "ARM: common: edma: Fix channel parameter for irq callbacks" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Mon Nov 30 12:32:05 UTC 2015


This is a note to let you know that I have just added a patch titled

    ARM: common: edma: Fix channel parameter for irq callbacks

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt21.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 2ada99ef61faaf2c44716787c89141f7df2d5ab9 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi at ti.com>
Date: Wed, 14 Oct 2015 14:42:43 +0300
Subject: ARM: common: edma: Fix channel parameter for irq callbacks

commit 696d8b70c09dd421c4d037fab04341e5b30585cf upstream.

In case when the interrupt happened for the second eDMA the channel
number was incorrectly passed to the client driver.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 arch/arm/common/edma.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c
index ea97e14e1f0b..7b12ed692373 100644
--- a/arch/arm/common/edma.c
+++ b/arch/arm/common/edma.c
@@ -403,7 +403,8 @@ static irqreturn_t dma_irq_handler(int irq, void *data)
 					BIT(slot));
 			if (edma_cc[ctlr]->intr_data[channel].callback)
 				edma_cc[ctlr]->intr_data[channel].callback(
-					channel, EDMA_DMA_COMPLETE,
+					EDMA_CTLR_CHAN(ctlr, channel),
+					EDMA_DMA_COMPLETE,
 					edma_cc[ctlr]->intr_data[channel].data);
 		}
 	} while (sh_ipr);
@@ -457,7 +458,8 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
 					if (edma_cc[ctlr]->intr_data[k].
 								callback) {
 						edma_cc[ctlr]->intr_data[k].
-						callback(k,
+						callback(
+						EDMA_CTLR_CHAN(ctlr, k),
 						EDMA_DMA_CC_ERROR,
 						edma_cc[ctlr]->intr_data
 						[k].data);




More information about the kernel-team mailing list