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

commit a719a75a77 upstream.

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

Fixes: 59451e1233 ("mtd: spi-nor: change return value of read/write")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Sergei Shtylyov 2019-10-30 21:48:59 +03:00 committed by Greg Kroah-Hartman
parent 98cb3486aa
commit a1ba92c1bf
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/spi-nor/spi-nor.c
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@ -2544,7 +2544,7 @@ static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,
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);