From: Marek Vasut <marex@denx.de>
Date: Tue, 4 Sep 2012 02:40:16 +0000 (+0200)
Subject: mxs/spi: Increment the transfer length only if transfer succeeded
X-Git-Tag: v3.7-rc1~139^2~1^3~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=204e706fa2ac1a62ff6423039945eb567c6c7efc;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git

mxs/spi: Increment the transfer length only if transfer succeeded

The transfer function incremented (struct spi_message)->actual_length
unconditionally, even if the transfer failed. Rectify this by incrementing
this only if transfer succeeded.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index bcba098..138c852 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -473,12 +473,12 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 						&first, &last, 0);
 		}
 
-		m->actual_length += t->len;
 		if (status) {
 			stmp_reset_block(ssp->base);
 			break;
 		}
 
+		m->actual_length += t->len;
 		first = last = 0;
 	}