dmaengine: stm32-mdma: Remove redundant initialization of pointer hwdesc

The pointer hwdesc is being initialized with a value that is never
read, it is being updated later in a for-loop. The assignment is
redundant and can be removed.

Signed-off-by: Colin Ian King <[email protected]>
Reviewed-by: Amelie Delaunay <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

Author: ColinIanKing

drivers/dma/stm32-mdma.c

@@ -1279,7 +1279,7 @@ static size_t stm32_mdma_desc_residue(struct stm32_mdma_chan *chan,
 				      u32 curr_hwdesc)
 {
 	struct stm32_mdma_device *dmadev = stm32_mdma_get_dev(chan);
-	struct stm32_mdma_hwdesc *hwdesc = desc->node[0].hwdesc;
+	struct stm32_mdma_hwdesc *hwdesc;
 	u32 cbndtr, residue, modulo, burst_size;
 	int i;