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| author | Ludovic Desroches <ludovic.desroches@atmel.com> | 2015-09-15 15:38:24 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-10-01 04:00:56 +0200 |
| commit | 62b5cb757f1d6c875293958535952dd38ff9e675 (patch) | |
| tree | e050298e04d5e4873b4a0064790a1e42199932cc /drivers/dma/at_xdmac.c | |
| parent | dmaengine: at_xdmac: handle numf > 1 (diff) | |
| download | linux-62b5cb757f1d6c875293958535952dd38ff9e675.tar.xz linux-62b5cb757f1d6c875293958535952dd38ff9e675.zip | |
dmaengine: at_xdmac: fix memory leak in interleaved mode
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>
Diffstat (limited to 'drivers/dma/at_xdmac.c')
| -rw-r--r-- | drivers/dma/at_xdmac.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c index 0190d1ca3004..2ab6fe7339e6 100644 --- a/drivers/dma/at_xdmac.c +++ b/drivers/dma/at_xdmac.c @@ -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; |