[Patch V1 1/3] spi: imx: replace schedule() with cond_resched()

[Gao Pan <pandy.gao@xxxxxxx>]

It's more rational that just do the schedule when necessary
other than do it every time. Thus, it's better to replace
schedule() with cond_resched() in fsl_lpspi_txfifo_empty(),
which contributes to saving cpu time.

Signed-off-by: Gao Pan <pandy.gao@xxxxxxx>
---
 drivers/spi/spi-fsl-lpspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index bcb7b28..901bef4 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -178,7 +178,7 @@ static int fsl_lpspi_txfifo_empty(struct fsl_lpspi_data *fsl_lpspi)
 			dev_dbg(fsl_lpspi->dev, "txfifo empty timeout\n");
 			return -ETIMEDOUT;
 		}
-		schedule();
+		cond_resched();
 
 	} while (txcnt);
 
-- 
1.9.1

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