[PATCH v7 10/10] mtd: m25p80: read in spi_max_transfer_size chunks

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From	Brian Norris <computersforpeace@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH v7 10/10] mtd: m25p80: read in spi_max_transfer_size chunks
Date	Fri, 06 May 2016 02:40:01 +0200
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From: Michal Suchanek <hramrach@gmail.com>

Take into account transfer size limitation of SPI master.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
v6 -> v7:
 * use min() instead of min_t()

 drivers/mtd/devices/m25p80.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index eab46d211ae6..9cf7fcd28034 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -172,7 +172,7 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
 
 	t[1].rx_buf = buf;
 	t[1].rx_nbits = m25p80_rx_nbits(nor);
-	t[1].len = len;
+	t[1].len = min(len, spi_max_transfer_size(spi));
 	spi_message_add_tail(&t[1], &m);
 
 	ret = spi_sync(spi, &m);
-- 
2.8.0.rc3.226.g39d4020

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[PATCH v7 10/10] mtd: m25p80: read in spi_max_transfer_size chunks Brian Norris <computersforpeace@gmail.com> - 2016-05-06 02:40 +0200

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