[PATCH v2 3/3] dmaengine: imx-sdma: drop redundant variable

[Philipp Puschmann]

In sdma_prep_dma_cyclic buf is redundant. Drop it.

Signed-off-by: Philipp Puschmann <philipp.puschm...@emlix.com>
Reviewed-by: Lucas Stach <l.st...@pengutronix.de>
---

Changelog v2:
 - add Reviewed-by tag

 drivers/dma/imx-sdma.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index a32b5962630e..17961451941a 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1544,7 +1544,7 @@ static struct dma_async_tx_descriptor 
*sdma_prep_dma_cyclic(
        struct sdma_engine *sdma = sdmac->sdma;
        int num_periods = buf_len / period_len;
        int channel = sdmac->channel;
-       int i = 0, buf = 0;
+       int i;
        struct sdma_desc *desc;
 
        dev_dbg(sdma->dev, "%s channel: %d\n", __func__, channel);
@@ -1565,7 +1565,7 @@ static struct dma_async_tx_descriptor 
*sdma_prep_dma_cyclic(
                goto err_bd_out;
        }
 
-       while (buf < buf_len) {
+       for (i = 0; i < num_periods; i++) {
                struct sdma_buffer_descriptor *bd = &desc->bd[i];
                int param;
 
@@ -1592,9 +1592,6 @@ static struct dma_async_tx_descriptor 
*sdma_prep_dma_cyclic(
                bd->mode.status = param;
 
                dma_addr += period_len;
-               buf += period_len;
-
-               i++;
        }
 
        return vchan_tx_prep(&sdmac->vc, &desc->vd, flags);
-- 
2.23.0