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[v3,08/15] spi: fsl-espi: improve return value handling in fsl_espi_bufs

Message ID 3d3ec02a-dfaf-0494-edaa-3a2871d0d4ec@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Heiner Kallweit Sept. 7, 2016, 8:52 p.m. UTC 
Return a proper status code from fsl_espi_bufs instead of returning
the number of remaining words and let the caller evaluate it.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
v2:
- rebased
v3:
- new numbering
---
 drivers/spi/spi-fsl-espi.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
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Patch

diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index f8a6dd1..8d6a570 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -258,7 +258,7 @@  static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
 	/* disable rx ints */
 	mpc8xxx_spi_write_reg(&reg_base->mask, 0);
 
-	return mpc8xxx_spi->count;
+	return mpc8xxx_spi->count > 0 ? -EMSGSIZE : 0;
 }
 
 static int fsl_espi_do_trans(struct spi_message *m, struct spi_transfer *trans)
@@ -288,9 +288,6 @@  static int fsl_espi_do_trans(struct spi_message *m, struct spi_transfer *trans)
 	if (trans->len)
 		ret = fsl_espi_bufs(spi, trans);
 
-	if (ret)
-		ret = -EMSGSIZE;
-
 	if (trans->delay_usecs)
 		udelay(trans->delay_usecs);