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Date: Sat, 17 Sep 2016 17:27:57 +0200 From: SF Markus Elfring <elfring@...rs.sourceforge.net> To: dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Dan Williams <dan.j.williams@...el.com>, Linus Walleij <linus.walleij@...aro.org>, Vinod Koul <vinod.koul@...el.com> Cc: LKML <linux-kernel@...r.kernel.org>, kernel-janitors@...r.kernel.org, Julia Lawall <julia.lawall@...6.fr> Subject: [PATCH 17/24] ste_dma40: Move an assignment in d40_prep_desc() From: Markus Elfring <elfring@...rs.sourceforge.net> Date: Sat, 17 Sep 2016 15:54:12 +0200 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@...rs.sourceforge.net> --- drivers/dma/ste_dma40.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 7f38496..4a21778 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2196,7 +2196,7 @@ static struct d40_desc * d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg, 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; int ret; @@ -2204,6 +2204,7 @@ d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg, if (!desc) return NULL; + cfg = &chan->dma_cfg; desc->lli_len = d40_sg_2_dmalen(sg, sg_len, cfg->src_info.data_width, cfg->dst_info.data_width); if (desc->lli_len < 0) { -- 2.10.0
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