Commit 62b5cb75 authored Sep 15, 2015 by Ludovic Desroches Committed by Vinod Koul Oct 01, 2015

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>

parent 4e538578

drivers/dma/at_xdmac.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;