tun: signedness bug in tun_get_user()
authorDan Carpenter <dan.carpenter@oracle.com>
Thu, 15 Aug 2013 12:52:57 +0000 (15:52 +0300)
committerBen Hutchings <ben@decadent.org.uk>
Sat, 26 Oct 2013 20:05:56 +0000 (21:05 +0100)
commit60be6501b85ef304de4c77979ca89981fd268841
tree6b3310d6d3cfdde8f92076290d6a0aab21dda95e
parent5cacde1a5f5e7c958dd1f2f74fd57fc3bf176784
tun: signedness bug in tun_get_user()

[ Upstream commit 15718ea0d844e4816dbd95d57a8a0e3e264ba90e ]

The recent fix d9bf5f1309 "tun: compare with 0 instead of total_len" is
not totally correct.  Because "len" and "sizeof()" are size_t type, that
means they are never less than zero.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/net/tun.c