[PATCH 1/1] dmaengine: fsl-edma: fix DMA channel leak in eDMAv4

From: Frank Li
Date: Mon Nov 27 2023 - 16:43:48 EST


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>
---
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 49e6cfc285029..c8acff09308fd 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -837,6 +837,7 @@ 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)
--
2.34.1