netfilter: xtables: change matches to return error code
The following semantic patch does part of the transformation:
// <smpl>
@ rule1 @
struct xt_match ops;
identifier check;
@@
ops.checkentry = check;
@@
identifier rule1.check;
@@
check(...) { <...
-return true;
+return 0;
...> }
@@
identifier rule1.check;
@@
check(...) { <...
-return false;
+return -EINVAL;
...> }
// </smpl>
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index fc62055..952150c 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -108,10 +108,10 @@
if ((e->ethproto != htons(ETH_P_ARP) &&
e->ethproto != htons(ETH_P_RARP)) ||
e->invflags & EBT_IPROTO)
- return false;
+ return -EINVAL;
if (info->bitmask & ~EBT_ARP_MASK || info->invflags & ~EBT_ARP_MASK)
- return false;
- return true;
+ return -EINVAL;
+ return 0;
}
static struct xt_match ebt_arp_mt_reg __read_mostly = {