[PATCH] mtd: spi-nor: fix silent truncation in spi_nor_read()

[Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>]

spi_nor_read() assigns the result of 'ssize_t spi_nor_read_data()' to
an 'int ret' variable, where the silent truncation isn't really valid --
ssize_t is a 64-bit type and *int* is a 32-bit type on 64-bit machines.

Fixes: 59451e1233bd ("mtd: spi-nor: change return value of read/write")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>

---
This patch is against of the 'mtd/fixes' branch of the MTD 'linux.git' repo.

 drivers/mtd/spi-nor/spi-nor.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/drivers/mtd/spi-nor/spi-nor.c
===================================================================
--- linux.orig/drivers/mtd/spi-nor/spi-nor.c
+++ linux/drivers/mtd/spi-nor/spi-nor.c
@@ -2544,7 +2544,7 @@ static int spi_nor_read(struct mtd_info
 			size_t *retlen, u_char *buf)
 {
 	struct spi_nor *nor = mtd_to_spi_nor(mtd);
-	int ret;
+	ssize_t ret;
 
 	dev_dbg(nor->dev, "from 0x%08x, len %zd\n", (u32)from, len);
 

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