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dmaengine: at_xdmac: fix memory leak in interleaved mode

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In interleaved mode, when numf > 1, we have only one descriptor for the
transfer but this descriptor has to be added to the descs_list. If not,
when doing remove_xfer, the descriptor won't be put back in the
free_descs_list.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Ludovic Desroches 2015-09-15 15:38:24 +02:00 committed by Vinod Koul
parent 4e5385784e
commit 62b5cb757f
1 changed files with 4 additions and 0 deletions
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4
drivers/dma/at_xdmac.c
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@ -958,6 +958,10 @@ at_xdmac_prep_interleaved(struct dma_chan *chan,
xt, xt->sgl);
for (i = 0; i < xt->numf; i++)
at_xdmac_increment_block_count(chan, first);
dev_dbg(chan2dev(chan), "%s: add desc 0x%p to descs_list 0x%p\n",
__func__, first, first);
list_add_tail(&first->desc_node, &first->descs_list);
} else {
for (i = 0; i < xt->frame_size; i++) {
size_t src_icg = 0, dst_icg = 0;