atm: zatm: fix memcmp casting
authorIvan Bornyakov <brnkv.i1@gmail.com>
Fri, 25 May 2018 17:49:52 +0000 (20:49 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 8 Jul 2018 13:30:52 +0000 (15:30 +0200)
commitd20dcd2f11357f2b0f52a243e4737c129240475d
treec6c73f5ea0b9e88c7639a8b5ab0ab86b08a74ce5
parent3ee6bd9411a60f90b5adeea5440cbac302c3e9d0
atm: zatm: fix memcmp casting

[ Upstream commit f9c6442a8f0b1dde9e755eb4ff6fa22bcce4eabc ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/atm/zatm.c