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

Message ID 1479985484-6641-1-git-send-email-pandy.gao@nxp.com (mailing list archive)
State Accepted
Commit 14de3918eacfc624023775c319e85e6597514195
Headers show

Commit Message

Gao Pan Nov. 24, 2016, 11:04 a.m. UTC 
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@nxp.com>
---
 drivers/spi/spi-fsl-lpspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

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);