Commit c9d884d8 authored by Frank Li's avatar Frank Li Committed by Peng Zhang
Browse files

dmaengine: fsl-edma: fix DMA channel leak in eDMAv4 

stable inclusion
from stable-v6.6.8
commit ed50e07d6a8eae1c079b637926811d7500e8dd9e
bugzilla: https://gitee.com/openeuler/kernel/issues/I99K53

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ed50e07d6a8eae1c079b637926811d7500e8dd9e



--------------------------------

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: 72f5801a ("dmaengine: fsl-edma: integrate v3 support")
Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231127214325.2477247-1-Frank.Li@nxp.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarZhangPeng <zhangpeng362@huawei.com>
parent 7236345a

drivers/dma/fsl-edma-common.c

+1 −0
Original line number Diff line number Diff line
@@ -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)