This is a note to let you know that I've just added the patch titled
dmaengine: pl330: dont complete descriptor for cyclic dma
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dmaengine-pl330-dont-complete-descriptor-for-cyclic-dma.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 30c1dc0ff30b5552e8af555265dbeac5637cbb48 Mon Sep 17 00:00:00 2001
From: Tushar Behera <[email protected]>
Date: Wed, 23 May 2012 16:47:31 +0530
Subject: dmaengine: pl330: dont complete descriptor for cyclic dma
From: Tushar Behera <[email protected]>
commit 30c1dc0ff30b5552e8af555265dbeac5637cbb48 upstream.
Commit eab215855803 ("dmaengine: pl330: dont complete descriptor for
cyclic dma") wrongly completes descriptor for cyclic dma, hence following
BUG_ON is still hit with cyclic DMA operations.
kernel BUG at drivers/dma/dmaengine.h:53!
Signed-off-by: Tushar Behera <[email protected]>
Acked-by: Jassi Brar <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/dma/pl330.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2322,7 +2322,7 @@ static void pl330_tasklet(unsigned long
/* Pick up ripe tomatoes */
list_for_each_entry_safe(desc, _dt, &pch->work_list, node)
if (desc->status == DONE) {
- if (pch->cyclic)
+ if (!pch->cyclic)
dma_cookie_complete(&desc->txd);
list_move_tail(&desc->node, &list);
}
Patches currently in stable-queue which might be from [email protected]
are
queue-3.4/dmaengine-pl330-dont-complete-descriptor-for-cyclic-dma.patch
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