This is a note to let you know that I've just added the patch titled
dmaengine: fsl-edma: fix DMA channel leak in eDMAv4
to the 6.6-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-fsl-edma-fix-dma-channel-leak-in-edmav4.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4ee632c82d2dbb9e2dcc816890ef182a151cbd99 Mon Sep 17 00:00:00 2001
From: Frank Li <Frank.Li@xxxxxxx>
Date: Mon, 27 Nov 2023 16:43:25 -0500
Subject: dmaengine: fsl-edma: fix DMA channel leak in eDMAv4
From: Frank Li <Frank.Li@xxxxxxx>
commit 4ee632c82d2dbb9e2dcc816890ef182a151cbd99 upstream.
Allocate channel count consistently increases due to a missing source ID
(srcid) cleanup in the fsl_edma_free_chan_resources() function at imx93
eDMAv4.
Reset 'srcid' at fsl_edma_free_chan_resources().
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 72f5801a4e2b ("dmaengine: fsl-edma: integrate v3 support")
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
Link: https://lore.kernel.org/r/20231127214325.2477247-1-Frank.Li@xxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma/fsl-edma-common.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 6a3abe5b1790..b53f46245c37 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -828,6 +828,7 @@ void fsl_edma_free_chan_resources(struct dma_chan *chan)
dma_pool_destroy(fsl_chan->tcd_pool);
fsl_chan->tcd_pool = NULL;
fsl_chan->is_sw = false;
+ fsl_chan->srcid = 0;
}
void fsl_edma_cleanup_vchan(struct dma_device *dmadev)
--
2.43.0
Patches currently in stable-queue which might be from Frank.Li@xxxxxxx are
queue-6.6/dmaengine-fsl-edma-fix-dma-channel-leak-in-edmav4.patch
