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dmaengine: Use Pointer xt after NULL check. 

Removing static analysis error:-
Possible null pointer dereference: xt

Because currently xt is dereferenced before NULL check,
Thus Use it after NULL Check.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Reviewed-by: Vaneet Narang <v.narang@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
hifive-unleashed-5.1
Maninder Singh 2015-06-26 16:04:48 +05:30 committed by Vinod Koul
parent fce9a74ba4
commit 4483320e24
1 changed files with 3 additions and 3 deletions
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6
drivers/dma/at_hdmac.c
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@ -659,14 +659,14 @@ atc_prep_dma_interleaved(struct dma_chan *chan,
size_t len = 0;
int i;
if (unlikely(!xt || xt->numf != 1 || !xt->frame_size))
return NULL;
dev_info(chan2dev(chan),
"%s: src=0x%08x, dest=0x%08x, numf=%d, frame_size=%d, flags=0x%lx\n",
__func__, xt->src_start, xt->dst_start, xt->numf,
xt->frame_size, flags);
if (unlikely(!xt || xt->numf != 1 || !xt->frame_size))
return NULL;
/*
* The controller can only "skip" X bytes every Y bytes, so we
* need to make sure we are given a template that fit that