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ste_dma40: Move an assignment in d40_prep_desc()

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Move one assignment for the local variable "cfg" so that its setting
will only be performed after a call of the function "d40_desc_get"
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 15:54:12 +02:00 committed by Vinod Koul
parent 254e1254ff
commit 8614591069
1 changed files with 2 additions and 1 deletions
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3
drivers/dma/ste_dma40.c
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@ -2198,7 +2198,7 @@ static struct d40_desc *
d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg, d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg,
unsigned int sg_len, unsigned long dma_flags) unsigned int sg_len, unsigned long dma_flags)
{ {
struct stedma40_chan_cfg *cfg = &chan->dma_cfg; struct stedma40_chan_cfg *cfg;
struct d40_desc *desc; struct d40_desc *desc;
int ret; int ret;
@ -2206,6 +2206,7 @@ d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg,
if (!desc) if (!desc)
return NULL; return NULL;
cfg = &chan->dma_cfg;
desc->lli_len = d40_sg_2_dmalen(sg, sg_len, cfg->src_info.data_width, desc->lli_len = d40_sg_2_dmalen(sg, sg_len, cfg->src_info.data_width,
cfg->dst_info.data_width); cfg->dst_info.data_width);
if (desc->lli_len < 0) { if (desc->lli_len < 0) {