[PATCH v2 1/6] mtd: spi-nor: change return value of read/write

[Michal Suchanek]

Change the return value of spi-nor device read and write methods to
allow returning amount of data transferred and errors as
read(2)/write(2) does.

Signed-off-by: Michal Suchanek <hramrach at gmail.com>
---
 include/linux/mtd/spi-nor.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index e540952..7d782cb 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -185,9 +185,9 @@ struct spi_nor {
 	int (*write_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len,
 			int write_enable);
 
-	int (*read)(struct spi_nor *nor, loff_t from,
+	ssize_t (*read)(struct spi_nor *nor, loff_t from,
 			size_t len, size_t *retlen, u_char *read_buf);
-	void (*write)(struct spi_nor *nor, loff_t to,
+	ssize_t (*write)(struct spi_nor *nor, loff_t to,
 			size_t len, size_t *retlen, const u_char *write_buf);
 	int (*erase)(struct spi_nor *nor, loff_t offs);
 
-- 
2.1.4