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Message-Id: <20200116231717.409223087@linuxfoundation.org>
Date: Fri, 17 Jan 2020 00:18:55 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
Tudor Ambarus <tudor.ambarus@...rochip.com>
Subject: [PATCH 4.14 57/71] mtd: spi-nor: fix silent truncation in spi_nor_read_raw()
From: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
commit 3d63ee5deb466fd66ed6ffb164a87ce36425cf36 upstream.
spi_nor_read_raw() 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: f384b352cbf0 ("mtd: spi-nor: parse Serial Flash Discoverable Parameters (SFDP) tables")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/mtd/spi-nor/spi-nor.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1445,7 +1445,7 @@ static int macronix_quad_enable(struct s
*/
static int write_sr_cr(struct spi_nor *nor, u8 *sr_cr)
{
- int ret;
+ ssize_t ret;
write_enable(nor);
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