From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> commit a719a75a7761e4139dd099330d9fe3589d844f9b 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: 59451e1233bd ("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> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/mtd/spi-nor/spi-nor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 2e18342..d1c91f0 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1294,7 +1294,7 @@ 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); -- 1.8.3