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ste_dma40: Move two assignments in d40_prep_sg() 

Move assignments for two local variables so that their setting
will only be performed after corresponding data processing succeeded
by this function.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Markus Elfring 2016-09-17 15:40:05 +02:00 committed by Vinod Koul
parent 78c6e1a594
commit 444fa14746
1 changed files with 4 additions and 2 deletions
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6
drivers/dma/ste_dma40.c
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@ -2238,8 +2238,8 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
enum dma_transfer_direction direction, unsigned long dma_flags)
{
struct d40_chan *chan = container_of(dchan, struct d40_chan, chan);
dma_addr_t src_dev_addr = 0;
dma_addr_t dst_dev_addr = 0;
dma_addr_t src_dev_addr;
dma_addr_t dst_dev_addr;
struct d40_desc *desc;
unsigned long flags;
int ret;
@ -2258,6 +2258,8 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
if (sg_next(&sg_src[sg_len - 1]) == sg_src)
desc->cyclic = true;
src_dev_addr = 0;
dst_dev_addr = 0;
if (direction == DMA_DEV_TO_MEM)
src_dev_addr = chan->runtime_addr;
else if (direction == DMA_MEM_TO_DEV)