From f9c6442a8f0b1dde9e755eb4ff6fa22bcce4eabc Mon Sep 17 00:00:00 2001 From: Ivan Bornyakov Date: Fri, 25 May 2018 20:49:52 +0300 Subject: atm: zatm: fix memcmp casting memcmp() returns int, but eprom_try_esi() cast it to unsigned char. One can lose significant bits and get 0 from non-0 value returned by the memcmp(). Signed-off-by: Ivan Bornyakov Signed-off-by: David S. Miller --- drivers/atm/zatm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/atm') diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c index 9c9a22958717..a8d2eb0ceb8d 100644 --- a/drivers/atm/zatm.c +++ b/drivers/atm/zatm.c @@ -1151,8 +1151,8 @@ static void eprom_get_byte(struct zatm_dev *zatm_dev, unsigned char *byte, } -static unsigned char eprom_try_esi(struct atm_dev *dev, unsigned short cmd, - int offset, int swap) +static int eprom_try_esi(struct atm_dev *dev, unsigned short cmd, int offset, + int swap) { unsigned char buf[ZEPROM_SIZE]; struct zatm_dev *zatm_dev; -- cgit v1.2.3-59-g8ed1b