From: Geert Uytterhoeven Date: Wed, 11 Feb 2015 10:23:38 +0000 (+0100) Subject: openvswitch: Add missing initialization in validate_and_copy_set_tun() X-Git-Tag: v4.0-rc1~51^2~25 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=13101602c4a9f653d59af9469040797bc5b361ca;p=linux.git openvswitch: Add missing initialization in validate_and_copy_set_tun() net/openvswitch/flow_netlink.c: In function ‘validate_and_copy_set_tun’: net/openvswitch/flow_netlink.c:1749: warning: ‘err’ may be used uninitialized in this function If ipv4_tun_from_nlattr() returns a different positive value than OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, err will be uninitialized, and validate_and_copy_set_tun() may return an undefined value instead of a zero success indicator. Initialize err to zero to fix this. Fixes: 1dd144cf5b4b47e1 ("openvswitch: Support VXLAN Group Policy extension") Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Graf Acked-by: Pravin B Shelar Signed-off-by: David S. Miller --- diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c index 993281e6278d..3829328c5a76 100644 --- a/net/openvswitch/flow_netlink.c +++ b/net/openvswitch/flow_netlink.c @@ -1746,7 +1746,7 @@ static int validate_and_copy_set_tun(const struct nlattr *attr, struct sw_flow_key key; struct ovs_tunnel_info *tun_info; struct nlattr *a; - int err, start, opts_type; + int err = 0, start, opts_type; ovs_match_init(&match, &key, NULL); opts_type = ipv4_tun_from_nlattr(nla_data(attr), &match, false, log);