From: Frank Li Frank.Li@nxp.com
stable inclusion from stable-v6.6.8 commit ed50e07d6a8eae1c079b637926811d7500e8dd9e category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8ST59
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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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@vger.kernel.org Fixes: 72f5801a4e2b ("dmaengine: fsl-edma: integrate v3 support") Signed-off-by: Frank Li Frank.Li@nxp.com Link: https://lore.kernel.org/r/20231127214325.2477247-1-Frank.Li@nxp.com Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- 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)