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authorIvan Bornyakov <brnkv.i1@gmail.com>2018-05-25 20:49:52 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-29 09:59:53 -0400
commitf9c6442a8f0b1dde9e755eb4ff6fa22bcce4eabc (patch)
tree4aaae2913584f690008cebd6b7594322e60872f7 /drivers/atm
parent312564269535892cc082bc80592150cd1f5e8ec3 (diff)
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 <brnkv.i1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/atm')
-rw-r--r--drivers/atm/zatm.c4
1 files changed, 2 insertions, 2 deletions
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;