[PATCH 1/1] mtd: dataflash: fix spi_transfer init

From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>

on some system as the spi_transfer is not set to 0 if the rx_buf or tx_buf
are not used they are not set to NULL

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
 drivers/mtd/devices/mtd_dataflash.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index cbed15b..3b7b9c6 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -161,6 +161,8 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
 
 	spi_message_init(&msg);
 
+	memset(&x, 0, sizeof(x));
+
 	x.tx_buf = command = priv->command;
 	x.len = 4;
 	spi_message_add_tail(&x, &msg);
@@ -246,6 +248,8 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
 
 	spi_message_init(&msg);
 
+	memset(&x[0], 0, sizeof(struct spi_transfer) * 2);
+
 	x[0].tx_buf = command;
 	x[0].len = 8;
 	spi_message_add_tail(&x[0], &msg);
@@ -302,6 +306,8 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 
 	spi_message_init(&msg);
 
+	memset(&x[0], 0, sizeof(struct spi_transfer) * 2);
+
 	x[0].tx_buf = command = priv->command;
 	x[0].len = 4;
 	spi_message_add_tail(&x[0], &msg);
-- 
1.7.10.4