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authorLudovic Desroches <ludovic.desroches@atmel.com>2015-09-15 15:38:24 +0200
committerVinod Koul <vinod.koul@intel.com>2015-10-01 07:30:56 +0530
commit62b5cb757f1d6c875293958535952dd38ff9e675 (patch)
treee050298e04d5e4873b4a0064790a1e42199932cc /drivers/dma/at_xdmac.c
parent4e5385784e69e448efca0998aa188404d5e8d313 (diff)
downloadlinux-62b5cb757f1d6c875293958535952dd38ff9e675.tar.bz2
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.c4
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;