[PATCHv2 06/11] dma: ste_dma40: reuse is_slave_direction helper

[Andy Shevchenko]

The is_slave_direction helps to check if the transfer type is slave.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
 drivers/dma/ste_dma40.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 23c5573..e5e60bb 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -2337,7 +2337,7 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan,
 							 unsigned long dma_flags,
 							 void *context)
 {
-	if (direction != DMA_DEV_TO_MEM && direction != DMA_MEM_TO_DEV)
+	if (!is_slave_direction(direction))
 		return NULL;
 
 	return d40_prep_sg(chan, sgl, sgl, sg_len, direction, dma_flags);
-- 
1.7.10.4

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