From: Dirk Behme <dirk.be...@de.bosch.com>
Inverting the logic of the if statement for the sg initialization
makes the if statement easier and better to read.
No functional change.
Signed-off-by: Dirk Behme <dirk.be...@de.bosch.com>
---
drivers/tty/serial/imx.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index be05b75..f4b0f6b 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -539,15 +539,15 @@ static void imx_dma_tx(struct imx_port *sport)
sport->tx_bytes = uart_circ_chars_pending(xmit);
- if (xmit->tail > xmit->head && xmit->head > 0) {
+ if (xmit->tail < xmit->head) {
+ sport->dma_tx_nents = 1;
+ sg_init_one(sgl, xmit->buf + xmit->tail, sport->tx_bytes);
+ } else {
sport->dma_tx_nents = 2;
sg_init_table(sgl, 2);
sg_set_buf(sgl, xmit->buf + xmit->tail,
UART_XMIT_SIZE - xmit->tail);
sg_set_buf(sgl + 1, xmit->buf, xmit->head);
- } else {
- sport->dma_tx_nents = 1;
- sg_init_one(sgl, xmit->buf + xmit->tail, sport->tx_bytes);
}
ret = dma_map_sg(dev, sgl, sport->dma_tx_nents, DMA_TO_DEVICE);
--
1.9.3
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