dmaengine: pl330: Initialize pl330 for pl330_prep_dma_memcpy after NULL check of pch
Currently pch pointer is already dereferenced before NULL check
and thus we are getting below warning:
warn: variable dereferenced before check 'pch'
So initialize struct pl330_dmac *pl330 after NULL check
of dma_pl330_chan *pch.
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Reviewed-by: Vaneet Narang <v.narang@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index a7d9d30..7e27144 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2581,12 +2581,14 @@
{
struct dma_pl330_desc *desc;
struct dma_pl330_chan *pch = to_pchan(chan);
- struct pl330_dmac *pl330 = pch->dmac;
+ struct pl330_dmac *pl330;
int burst;
if (unlikely(!pch || !len))
return NULL;
+ pl330 = pch->dmac;
+
desc = __pl330_prep_dma_memcpy(pch, dst, src, len);
if (!desc)
return NULL;