linux-kernel - [PATCH 09/11] spi-dw: Fix condition in spi_dw

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Date:	Wed, 22 Jun 2011 19:00:11 -0700
From:	dirk.brandewie@...il.com
To:	linux-kernel@...r.kernel.org,
	spi-devel-general@...ts.sourceforge.net
Cc:	Dirk Brandewie <dirk.brandewie@...il.com>
Subject: [PATCH 09/11] spi-dw: Fix condition in spi_dw_{writer/reader}

From: Dirk Brandewie <dirk.brandewie@...il.com>

Fix the condition based on whether the current transfer has a tx/rx
buffer.

Signed-off-by: Dirk Brandewie <dirk.brandewie@...il.com>
---
 drivers/spi/spi-dw.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index cc38aa0..35b952b 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -193,8 +193,8 @@ static void spi_dw_writer(struct spi_dw *dws)
 	u16 txw = 0;
 
 	while (max--) {
-		/* Set the tx word if the transfer's original "tx" is not null */
-		if (dws->tx_end - dws->len) {
+		/* Set the tx word if the transfer's "tx" is not null */
+		if (dws->tx) {
 			if (dws->n_bytes == 1)
 				txw = *(u8 *)(dws->tx);
 			else
@@ -213,7 +213,7 @@ static void spi_dw_reader(struct spi_dw *dws)
 	while (max--) {
 		rxw = dw_readw(dws, dr);
 		/* Care rx only if the transfer's original "rx" is not null */
-		if (dws->rx_end - dws->len) {
+		if (dws->rx) {
 			if (dws->n_bytes == 1)
 				*(u8 *)(dws->rx) = rxw;
 			else
-- 
1.7.3.4

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